Park's Compact Crank Puller is used to remove Shimano Octalink, ISIS Drive and square-taper cranksets. It includes 2 rotating tips (16.3 and 11.3mm) to make the job easy. This is a great tool for your travel and home tool kit.

To prevent poor shifting and uneven drivetrain wear, most manufacturers recommend chain replacement at or before 1% stretch. Now you can quickly and accurately determine the wear and stretch of any chain with Park's Chain Checker. Simply insert the Chain Checker’s pins into 2 links, press the swingarm gauge tight, and then check the gauge window for an accurate reading!

A professional quality shop chain tool that works on 5-speed to 12-speed Road and Mountain Bike derailleur chains*, including SRAM AXS 12 speed, as well as 1/8-inch and 3/16-inch chains. The CT-3.3 features an adjustable locating shelf so it works on any width chain to remove and install chain rivets. Built to last and easy to use, the CT-3.3 features a comfortable handle, investment cast steel body and replaceable driving pin (#CTP). *The CT-3.3 will install, but not peen, Campagnolo 11 and 12-speed chain rivets. - Comfortable T-handle - Replaceable driving pin (CTP) - Investment cast steel body - Adjustable locating shelf

When a mechanical problem has you feeling lost in space, the Alien II is the extraterrestrial that will ensure you don't have to phone home. Its molded-plastic body provides an excellent gripping surface and splits in two with a press of a button. Tools include: 2, 2.5, 3, 4, 5, 6, 8 and 10mm Allen wrenches; 8, 9, 10mm box wrenches; Phillips and regular screwdrivers; a universal chain tool; 14- and 15-gauge spoke wrenches; a stainless-steel knife; a T25 Torx wrench for disc brakes; and a compartment for 2 chain pins. There's even a handy bottle opener for after the ride.

Park's Hex Wrench Set offers all the popular Allen wrenches (1.5, 2, 2.5, 3, 4, 5 and 6mm) in a convenient fold-up unit. The tool tips are chamfered for a positive grip and the one-piece fiber-reinforced-resin handle is light, comfortable, slip resistant and 40% stronger than steel.

The Masterlink Pliers is a multi-tool developed to provide functions that are not on a typical multi-tool. It is designed to be light and compact so you can carry it with you. This tool serves as a tire lever, valve core remover, valve stem lock nut wrench, and master link pliers. It also provides storage for two master links so you will always be prepared on the trail. Magnets hold the master links securely in place and self close the tool. - Weight: 38.5g - Size: 116 mm x 20 mm x 9 mm - Material: 7075-T6 aluminum - 9, 10, 11, and 12-speed master links and chains - Compatible with SRAM PowerLock Link, Shimano Quick-Link, KMC Missing Link and other similar master links

- Snap onto any Rx Micro multi-tool - Integrated quick link storage pockets - Levers snap together with bonus tool insert featuring integrated Presta Valve Core Tool, Valve Extender Wrench, and Storage Pocket for Shimano and Campagnolo master pins. - Pedro's proprietary plastic blend delivers impressive strength & performance in compact size. Pedro's new Micro Levers are born from award-winning DNA, fight well above their weight of just 20 grams, and pack a few extra tricks up their sleeve. Bring on the flat tires and trail-side repairs. Available in yellow, pink, green, orange, and black.

Park’s Professional Cable And Housing Cutter is specifically for use on derailleur and brake cables and housing. It even makes quick work of hard-to-cut shift-cable housing. Its cold-forged, heat-treated-steel handles won't bend and its precision-ground jaws cut perfectly every time. Its dual-density molded grips are specially contoured for superior comfort and control. Plus, there’s a built-in cable-end crimper and a forming hole for reforming housing ends.

- Organize, store and protect riding essentials all in one place - Waterprood Polyurethane case fits mini pumps, tools, tubes phones and money - Fits in a conventional watter bottle cage or jersey pocket

The ultimate trailside companion. These high tensile steel multi-tools feature a precise fit and finish and side grips for a secure handhold even with gloves on. The m19 includes: - Chain tool: 8/9/10 speed compatible - Spoke wrench: #0, 1, 2, 3 - Hex wrenches: #2, 2.5, 3, 4, 5, 6, 8 - Open wrench: 8mm, 10mm - Screwdrivers: Phillips #1, Phillips #2, flat #2 - Torx: t-10, t-25 - Stainless steel carrying case - Length: 89 mm - Weight: 175g - Warranty: lifetime

• Updated to be stronger, smoother, and more versatile • Features a new material and redesigned tip for easier entry into just about any tire, including tubeless • The unique design lifts the tire away from the rim and features a spoke hook to use when multiple levers are needed • This set includes 3 tire levers

The tire lever, though seemingly one of the simplest and most basic of cycling tools, is one commonly used by almost every cyclist, and unfortunately, one often responsible for unnecessary frustration. Really, what is more fun than flatting far away from home, being thrilled you lugged that spare tube and pump, and then having your tire levers snap in two? Pedro's award-winning, universally loved tire levers feature molded box construction and a proprietary plastic composite blend that makes them the strongest levers available. The unique chisel tip shape easily inserts beneath the tire bead and the slightly thicker shape keeps the lever securely in place. Additionally, the bold shape of the lever and helpful dual spoke hooks makes removal of even the tightest tires a simple task. - Award-winning and universally loved - Molded box construction and proprietary plastic blend makes these the strongest levers available - Chisel tip shape is easy to insert beneath the bead and the slightly thicker shape keeps the tire lever from slipping - Bold shape makes it easy to remove the tightest of tires without bending or breaking

- Includes everything for a quick fix while on or off-road - Giant seat bag - 12 glueless patches - 2 tire levers - Mini pump - 9 function multi-tool

Park's Mini Chain Brute Chain Tool goes anywhere and features a V-shaped handle, a super-strong replaceable pin, and fine threads to make chain removal and installation a breeze. The CT-5 works on any derailleur chain, including Shimano Hyperglide and 9-, 10-, and 11-speed. It works for loosening tight links, too.

Cleans bicycle chain quickly, easily, and effectively — without the hassle and mess of removing the chain from the bike. The Cyclone uses a large solvent reservoir, hundreds of rotating bristles, and a two-step cleaning process to get chains really clean, improve shifting performance, and extend the life of the chain and other expensive drivetrain parts. - Works with all multi-speed bikes (5, 6, 7, 8, 9, 10, 11, and 12-speed) as well as some single-speed models and e-bikes - Strong magnet at the bottom of the fluid reservoir holds metallic particles scrubbed from the chain - Special wicking sponge draws solvent from the chain as it exits, minimizing drips and mess - Sturdy handle makes the Cyclone easy to use and control - Holds 2 fluid ounces (59ml) of solvent

Park's Home Mechanic Pedal Wrench is great for your home workshop and event tool box. This top-quality 15mm pedal wrench provides the leverage you need to remove stubborn pedals. It's made to last from heat-treated steel, and the handle has a vinyl grip for comfort.

An economical option for safely and accurately tightening fasteners to proper torque specifications. With a simple gauge readout, the TW-1.2 is intuitive and easy to use, and applies up to 14 Nm of torque to any fastener or component with left or right-handed threads. Perfect for low-torque applications such as stem bolts, levers, and carbon fiber components. 3/8" drive for compatibility with all Park Tool sockets, bits, and crow feet. - 0 to 14 Newton meter (0 to 140 inch-pound) range - 3/8" drive - Reads and registers torque values for both left hand and right hand threading - Length: 11.5" (292 mm)

- Hex wrenches 2, 2.5, 3, 4, 5, 6, 8 - TX wrenches 10, 25 - PH1 screwdriver - Chain tool - Schrader & Presta valve tool - Flat screwdriver 1.0 x 5.0 - Spoke Key 3.3, 3.45 and DT

Park's Heavy-Duty Tire Levers handle the toughest tire-and-rim combinations including difficult downhill and freestyle tires. Their specially designed tips engage the tire bead so it can be removed with just two levers. Plus, these beefy, forged-steel levers are a full 8-inches long for superior leverage.

A great way to hold small parts, tools and components during a repair, Park Tool's Benchtop Overhaul Mat features multiple small pockets and one large work area. It's perfect for suspension work or to organize parts for installation. • Made of a rubber-like PVC • Cleans easily and looks great on any bench • Measures: 14.7” x 7” (38cm x 18cm)

- Designed for precise torque and to prevent carbon fiber component damage - 1/4" drive torque wrench with chromoly ratchet head - Chrome plated chrome vanadium Hex and Torx bits (Hex: 2,2.5,3,4,5,6mm Torx: T10,T25,T30) - 100mm extension bar included

Park's I-Beam Mini Fold-Up Hex Wrench/Screwdriver/Torx Set with Chain Tool includes 1.5, 2, 2.5, 3, 4, 5, and 6mm Allen wrenches, a socket 8mm Allen, a regular screwdriver, a T25 Torx tool (for disc-rotor bolts), a tire lever, spoke wrenches and a chain tool. The I-Beam conveniently fits in pockets and packs, too.

For use in conjunction with our reaming pedal taps, this thread insert is held in place with a strong thread locker and allows you to install any standard pedal. - Pack of 10, fits 9/16" pedals.

- Specifically designed for changing brake lever blades on all MT series brakes

Precision brake bleeding tools and adaptor kits for Magura brake systems. - Bleed adaptors fit MT series - Attaches to caliper only

- Takes place of rear wheel providing tension on chain to protect the frame when rear wheel is removed for cleaning, storage, or transport. - Allows full forward or backward rotation of drivetrain and shifting through full range of gears. - Quick and easy one-handed installation on standard QR style dropouts and removable pulley wheel works directly on 12mm thru axles. - Professional grade stainless-steel, aluminum, and solvent resistant plastic components ready for daily life in the wash bucket. The original Pedro's Chain Keeper has been a favorite in the wash buckets of mechanics for decades. The new Pro Chain Keeper carries this heritage forward to new levels featuring one-handed installation, shifting across all gears, professional duty stainless-steel and aluminum construction, a heavy-duty solvent resistant plastic pulley, and 12mm thru axle compatibility.

The most lightweight, compact 16 function multi-tool (with integrated chaintool) available. Very handy as it fits in a jersey pocket, saddle bag, or even a Ninja ToolBox. Tools: - 2 / 2.5 / 3 / 2.5 & 4 (L-type) / 5 / 8mm Allen wrenches - 4 / 6mm hex sockets - T10 / T15 / T25 Torx wrenches - #2 Phillips / flat head screw drivers - 14G / 15G spoke wrenches - CrMo steel chain tool and chain hook (the chain tool is compatible with single and multi-speed chains up to 12 speed, NOT including Campagnolo hollow pin chains) - Tool Material: Chrome vanadium steel - Body Material: Carbon fiber reinforced injection polymer - Added Feature: Leverage added on 4 / 6mm Allen wrench, L-type wrench - Size: 6.1 x 3.3 x 1.9cm / 2.4” x 1.3” x 0.5” - Weight: 92g / 3.24oz

- Consumer grade water-based silicone bicycle polish - Safe on all parts including carbon - Protects against uv rays, water and dirt

This compact folding utility knife will quickly find a home in your pack, in the shop, or at home. Stainless and aluminum construction provide a balance of low weight and durability, ready for years of daily use. Easily operable with one hand the folding design locks open during use and folds to half its size, perfect in a pocket or clipped to a belt, always ready for the next job. Standard replaceable blades are easy to find at your local hardware store.

- Made from laser cut tool steel heat-treated for strength and lasting performance - New design features 24mm socket driver for use with Pedro's professional socket tools - 290mm length and ergonomic shape provide excellent leverage and comfort - Smaller lightweight design perfect for travel and the toolbox Pulling inspiration from our shop wrenches and using the same laser-cut tool steel construction, the Pro Travel Pedal Wrench makes quick work of tough pedals and now doubles as a socket driver for use with Pedro's professional socket tools. Features include a long 290mm length, cushioned plastic grip for control and comfort, heat-treated tool steel construction for strength and lasting performance, new 24mm socket driver, and a precision-cut 15mm wrench opening positioned at a 30 degree offset to improve mechanical advantage and wrench positioning. The smaller, lightweight, 215g design is perfect for travel and easy to fit in the toolbox.

- Kit includes full-fluid capture bottle, bleed fittings, hose, syringe and 16oz Magura fluid

SRAM's Disc Brake Bleed Kit has everything you need to ensure your brakes are dialed. The kit is compatible with SRAM X0, XX, Guide, and HydroR brakes. It is not compatible with RockShox' fork bleed kit. Includes the following: • 2 syringes/fittings • bleed blocks • Torx tool • Crow's foot • Bleeding Edge Fitting • DOT 5.1 hydraulic fluid

Professional quality heat-treated steel with hand-saving no-slip plastic grip and ergonomic design for maximum leverage and comfort. - Precision cut for an exact fit with no slippage - Lifetime warranty on all Pedro's tools

- Makes the installation of hydraulic disc brake calipers quick and easy - Helps properly align a hydraulic disc brake caliper with the rotor - Ensures even spacing between disc brake pads and rotor - Compatible with all styles of hydraulic disc brakes - Durable stainless steel construction

Once you try on Park's Heavy Duty Shop Apron, there's no going back to standard aprons. The SA-3 is made from heavy 10-ounce cotton canvas and has two rows of bar tack reinforced pockets for stashing pens, parts, tools, etc. The special crossback design removes pressure from the neck for all day comfort and a nylon quick release makes the apron easy to adjust and take off. This sweet apron is a full 35-inches in length and the bottom 7-inches of the apron can be snapped up for a custom height fit. Plus, an embroidered Park Tool logo makes the apron as good looking (even when it's dirty) as it is functional.

- Three brush heads featuring tough nylon bristles and an integral scraper for mud de-clogging - Ideal for chain, cassette and sprockets - 10-speed compatible

Serfas' Slimline mini-tool has everything you need for road and trail fixes in an incredibly compact package. It includes: 2, 2.5, 3, 4, 5, and 6mm Allen keys, a T25 Torx wrench, a spoke wrench and a chain tool. This compact, functional tool also tucks away Phillips and flathead screwdrivers between it's thin chrome body.

Jagwire's Pro DOT Bleed Kit comes with the right fittings to bleed Avid, Formula, Hayes and Hope hydraulic-disc brakes for optimum braking performance. You can buy it with or without Finish Line DOT brake fluid.

Carry the essential roadside/trailside tools with the MSW Tool Hugger Kit. The Kit includes all the basics for quick repairs: CO2 cartridges, inflator head, tire levers, mini tool, and patch kit. Bring along your own tube and roll them all up in the Tool Hugger Wrap, which attaches to standard saddle rails, or just toss it into a jersey pocket. - Durable Cordura outer layer - Seven elastic tool compartments - Hook and loop closures

- Progold's powerful degreaser formula in a ready-to-use aerosol can - Quickly cleans bicycle components with no scrubbing or rinsing - Leaves behind no oily residue

Compact tubeless tire repair kit with machined aluminum storage tube that doubles as a handle. Combined tire reamer and insertion tool. Includes five tire plugs. - Weight: 47g

Having trouble getting at internal nipples? Park's 3-Way Internal Nipple Wrench comes to your rescue. It features a 3.2mm square drive, as well as 5 and 5.5mm hex sockets that slip perfectly into the tight surroundings of most rims. It also utilizes Park's innovative Y-shape design that provides heaps of leverage and comfort.

With its continuous and parallel jaws, the Joker 6004 replaces several single spanner sizes. The required size is automatically and continuously set when attaching the tool to the hexagon bolt or screw. The integrated lever mechanism securely clamps the hexagon screw or bolt between the jaws, reducing the risk of slippage or damage. The ratchet feature ensures fast and consistent screw driving without removing the tool. By using the corner-width rectangular prisms, a return angle of only 30° can be achieved. The single-arm design, in conjunction with the ratchet feature and the corner-width prism, makes it possible to work even in confined spaces. - The adjustable Joker 6004 covers all metric and imperial dimensions in the respective field of application - Automatic and continuous grip of hexagon screws and bolts - Lever mechanism when gripping avoids slipping and damage - Fast and consistent screwdriving without removing the wrench thanks to mechanical ratchet function - Return angle of only 30° through placement in the corner-width rectangular prisms in the mouth

Park Tool's Bottom Bracket Bearing Tool Set removes and installs (with a bearing press which is sold separately) BB86, BB90, BB92 and Press Fit bottom brackets from Shimano, Race Face, SRAM and others that use a nominal 24mm-diameter spindle. This tool has a bearing remover that fits inside the bottom bracket shell and into the bearing so the bearings can be tapped out of the frame with a hammer. The set also includes two bushings that you use in conjunction with a bearing press for precision bearing installation (bearing press sold separately).

Performing the right maintenance on your SRAM and RockShox products not only ensures years of worry-free riding, but will also keep performance optimal and enhance your experience on the bike. Each service interval indicates the maximum number of riding hours designated for each type of recommended maintenance. Depending on the terrain and environmental conditions in your location, your riding style, and skill level, you may see more optimum performance if you service your SRAM and RockShox products at shorter intervals.

High-quality L-key set out of stainless steel for hexagon socket screws by Wera. The Hex-Plus profile offers a greater contact surface in the head of the screw; the notching effect is therefore reduced to a minimum and damage to the screw head is more or less eliminated. Comes with hex ballpoint on the long arm: the ballpoint drive profile means that it is possible to swivel the tool axis away from the screwdriving axis, thus enabling "round the corner" screwdriving. - Stainless steel prevents the transfer of extraneous rust: fasten stainless screws with stainless tools - Hex-Plus allows socket head screws to live longer - With Take-it-easy tool finder: color coding by size - Wear-resistant clip material for enhanced durability - Color-coded, easy-to-grip plastic sleeve, even at low temperatures - Comes in an almost wear-free L-key clip fastener

T-handle screwdriver: The ideal handle shape to allow high torque transmission in difficult tightening and loosening situations. The ergonomic shape of the handle fills the palm of the hand well, the fingers lie safely in the soft rounded handle recesses. The whole hand makes contact with the handle and friction losses between the hand and the handle are avoided. Special surface treatment of the blades provides high corrosion protection and an optimum fit in the screw head. - T-handle screwdriver for the transmission of particularly high tightening and loosening moments - Ergonomic 2-component handle with finger handle recesses and pleasant surface feel for very high power transmission and fatigue-free working. - "Take-it-easy" tool finder: color coding according to profile and size - With additional short arm for the transmission of extremely high torques due to the leverage of the long arm - Holding function (HF) securely holds the hexagon socket screw on the tool

Park's Shop Screwdrivers are pro-quality tools featuring durable and precise heat-treated chrome-vanadium tips and shafts and dual-density handles for an excellent grip.

In the tradition of our premium quality fold up tools, the BO-4 is a combination corkscrew and bottle opener complete with a knife/foil cutter. This multi-tool folds for storage and features all stainless steel mechanisms housed in a forged aluminum case. This is a top quality beverage tool perfect for the workbench, toolbox or wine bar.

Professional quality T-Handle hex wrench built for speed, efficiency, leverage and a perfect fit. - Carefully selected combination of Chrome Vanadium and S-2 tool steels - Unique anodized aluminum Speed Spinner makes running long bolts in and out quick and effortless - Machined, chamfered tips allow easier insertion into hex fittings - Integrated “Strip-Gripper” twisted hex that makes removal of most bolts with stripped or oversized hexes fast and easy - Sliding T-handle creates increased leverage and multiple access positions

The Mini P20 is a 20-function, pro-quality, precision mini-tool with a sleek forged alloy body. Integrated chain tool with built-in master link tool for removing master link type chains folds away for a streamlined profile. Perfect for any road or trailside repair. - Body Material: Forged aluminum - Tool Material: Chrome vanadium steel - Size: 7.4 x 2.9 x 1.8cm / 2.9" x 1.1" x 0.7" - Weight: 131g / 4.62oz - Additional Features: Knife blade lock, extendable for leverage, and secondary chain link fence - Includes neoprene bag Tools: - S2 / 3 / 4 / 5 / 6mm Allen wrenches - 8mm hex socket - T15 / T25 Torx wrenches - 14G / 15G / Mavic M7 / Shimano 4.5mm spoke wrenches - CrMo steel chain tool, CrMo master link tool - #2 Phillips screwdriver - Serrated knife / saw

Special tools for building Surly Fat Bike wheels. - 56mm-wide spacer aids in dishing and truing Moonlander offset wheels - 35mm-wide spacer aids in dishing and truing Pugsley offset wheels

Torq Stick Torque Wrech - Pull & rotate to select your target torque value - Audible signal: Torque wrench clicks when preset torque is reached - Storage pen integrated with tool holder snaps to hold the Ratchet Stick together for riding or storage - Turn the ratchet wheel to tighten or loosen mounting bolt - 3, 4, 5 Allen bits, T20, T25 Torx bits included - Material: aluminum and engineering grade polymer body, hardened steel ratchet, S2 hardened steel bits

- A multi-tool that includes a tubeless tire repair kit - 18 individual tools 22.5345mm hexes T25 Torx wrench stainless steel reamer knife plug tool and air stop - Also includes three 5mm thick tire plugs and integrated storage compartment - Vanadium s

The 37-piece SBS-3 from Park Tool is a comprehensive, shop-quality set of sockets, hex bits, and Torx compatible drivers selected specifically to tackle a wide variety of common bike repair needs. The SBS-3 also includes flat-faced sockets in common sizes for work on suspension forks. Ideal for use with Park Tool torque wrenches, the 3/8" drive bits and sockets are forged from tough, chrome vanadium steel and nickel chrome plated for lasting durability.

Topeak's Shuttle Levers are strong enough for even the busiest shops; think what they'll do for that tight road tire and fat downhill rubber. These levers are extra long for leverage and are made of engineering-grade plastic with stainless-steel reinforcements down the middle that ensures years of hard use.

Park's Cone Wrenches are made of durable tool steel and are nice and thin to fit on the small-clearance cones found on hubs and other bearing assemblies. Plus, they work as regular wrenches, too. They feature Park's special Y heads that put more material where it's needed for excellent durability and strength. Most applications require at least 2 cone wrenches. If you have questions please contact us and we can recommend the correct sizes for your needs.

- 110 gram, 8-function shop quality folding tool with 1.5, 2, 2.5, 3, 4, 5 and 6mm hex wrenches plus T25 torx wrench. - Super strong composite body features new design with improved comfort, better leverage, and stay-tight bolt design. - Professional-grade tool steel wrenches feature superior anti-corrosion finish for unmatched lasting performance. Pedro's folding wrench sets are essential for the shop, event, ride, and at home. These folding wrench sets feature professional grade tool steel for strength, superior anti-corrosion finish for unmatched lasting performance, and body made of lightweight but super tough composite material. The new body features improved ergonomics, shaped to perfectly fit in your hand, allow easy access to each tool, and with extra length for better leverage and control. In addition, the new stay-tight bolt design keeps tool bits from loosening over time. Backed by Pedro's lifetime warranty.

- Perfect companion for your Pedro's torque wrench - Bits made from premium S2 tool steel to ensure strength and lasting performance - Includes 16 hex and torx bits and 2 drive adapters in convenient holders - 50mm length bits in key sizes ensure component compatibility Pedro's Hex Bit Set II is designed to work with our torque wrenches offering an extensive range to handle most hex and torx needs. The set includes longer 50mm bits in key sizes to ensure compatibility and fit with all components where standard 25mm bits fall short. Bits are made from premium S2 tool steel for strength and lasting performance. Set includes: - Hex: 2, 2.5, 3, 4, 5, 6, & 8mm (25mm), 4 & 5mm (50mm) - Torx: T10, T15, T20, T25, & T30 (25mm), T25 & T30 (50mm) - Drive Adapters: 1/4-inch square to 1/4-inch hex & 1/4-inch hex to 1/4-inch square

The Pro Cassette Lockring Socket begins as a solid piece of alloy tool steel, then is fully machined to precise tolerances for an exacting fit you won't find anywhere else, and finally is optimally heat treated for maximum strength and longevity. Designed with the professional mechanic in mind, we included both a 5mm guide pin and a removable aluminum 12mm pin held in place magnetically and easily removed with a satisfying precision-fit "pop". The extra-deep splines ensure superior engagement while the quick spin knurling provides speed and control. Use on your Grande Torque Wrench for proper torque or use with our Pro Socket Handle or Equalizer Pedal Wrench to remove that stubborn lockring requiring a little extra leverage. Backed by Pedro's lifetime warranty. - Alloy tool steel socket is fully machined to precise tolerances for an exacting professional-level fit and optimally heat treated for maximum strength and longevity. - Features a unique dual function design with 5mm pin and removable magnetic 12mm pin. - Features extra-long splines for superior engagement, quick-spin knurling, a 3/8" square drive for use with torque wrenches, a 24mm external drive for use with Pedro's Pro Socket Handle and pedal wrenches, and a 19.8mm internal diameter with 21.5mm depth. - Fits all Shimano®, Sram®, SunRace®, SunTour®, Chris King®, and other HG® standard cassette lockrings, disc brake lockrings, and other similar fittings with 12 splines and 23.5mm outside diameter.