Drivetrain

Super hardened steel designed for high torque Singlespeed and BMX use.

- Forged and CNC-machined aluminum with precision sealed bearings for 2-pc cranks and 24mm spindles - BSA 1.37"x24T for 68/73mm shells

- Includes: (5) 8.5mm outer bolts, (5) 6mm outer bolts, (5) 5mm inner nuts

The Box Four chain employs an 8-speed platform in a similar strategy to the Prime 9 but at a great price point. The chain is polished and then chemically treated to achieve corrosion resistance. We engineered the inner link spacing to be a little tighter than other 8-speed chains and is optimized for use with our Box Four Wide/Narrow Chainring.

The Box Three BMX chain is polished and then chemically treated to achieve corrosion resistance. All Box Three chains have chamfered shifting edges, solid plates and solid pins to safeguard durability. Our unique inner link spacing is engineered to grab those modern wide/narrow chainrings. They are compatible with BMX 3/32" and 1/8" chainrings and cogs which fits most retro-modern 29 inch BMX bikes and smaller bikes.

The Box Two BMX 1/8"x112 link chain's nickel plating adds both corrosion and wear-resistance to your ride. All BMX chains have solid plates and solid pins to safeguard durability. They are compatible with BMX 3/32" chainrings and cogs and fits most retro-modern 29 inch BMX bikes. FEATURES - Our Most Durable Chain - Nickel Plated Protection - Includes Nickel Connecting Link - Durable Hardened Solid Pins - Fits 29 Inch BMX Bikes COMPATIBILITY - Hex Lab Titanium Cogs - Box One Single Speed Aluminum Cogs - Box One Single Speed Chromoly Cogs - Box Two Freewheel

The Box Two chain's nickel plating adds both corrosion and wear resistance. All Prime 9 chains have chamfered shifting edges, solid plates, and solid pins to safeguard durability. Our unique inner link spacing is engineered to grab those modern wide/narrow chainrings. We chose to modernize the 9-speed platform due to the chain's spirited reputation. FEATURES - Prime 9 Technology - Our Most Durable Chain - Wide/Narrow Chainring Compatible - Durable Hardened Solid Pins - Includes Nickel Connecting Link - Nickel Plated Protection - Extra Long for Long Wheel Base & Cargo Bikes IMPORTANT NOTES - Available in 2 lengths: 126L & 144L - Compatible with BMX 3/32" Chainrings and Cogs - Compatible with most 10,11, & 12-speed wide/narrow chainrings. COMPATIBILITY - Box One Prime 9 11-50T and also 12-50T eBike Cassette Black - Box Two Prime 9 11-50T and also 12-50T eBike Cassette Black - Box Three Prime 9 11-50T and also 12-50T eBike Cassette Black - Box One Prime 9 Rear Derailleur - Box Two Prime 9 X-Wide Rear Derailleur Black - Box Three Prime 9 X-Wide Rear Derailleur Black - Box One Prime 9 Shifter Black - Box Two Prime 9 Shifter Black - Box Three Prime 9 Shifter Black - Box Two Chainring - Box One Single Speed Aluminum Cogs - Box One Single Speed Chromoly Cogs - Box Two Freewheel - Perfect for your 3/32" BMX Chainring

Box One Single-Speed Aluminum Cogs are 7075-T6 aluminum alloy. It's designed to fit Shimano compatible cassette hubs and has a 5mm wide inner base, giving a more solid interface with the cassette body. The alloy cogs are anodized black with laser-etched graphics. FEATURES - Shimano Compatible Driver - 7075-T6 Alloy - 3/32" or 1/8" Chain Compatible - Lightweight SPECIFICATIONS - Material: 7075-T6 Aluminum - Process: Laser-etched logos Weight - 13t: 8 grams / 0.3 ounces - 14t: 11 grams / 0.4 ounces - 15t: 13 grams / 0.5 ounces - 16t: 14 grams / 0.8 ounces - 17t: 16 grams / 0.6 ounces - 18t: 18 grams / 0.65 ounces

Box One Single-Speed Chromoly Cogs are CNC-machined from long-wearing CNC-machined chrome-molybdenum. It's designed to fit Shimano™ compatible cassette hubs and has a 5mm wide inner base, giving a more solid interface with the cassette body. FEATURES - Chromoly Steel Offers Extra Long Service Life - 5mm Wide Inner Base to Give a More Solid Interface with Freehub Body

The Box Four cassette adapts our Prime 9 philosophy of durability, simplicity, and reliability at a great price point. All cogs are stamped from steel, given our durable black coating and then the larger cogs are pinned to each other with spacers for easy installation. - Compatible with HG freehub bodies - Steel stamped cogs - No spiders - Wide ratio and consistent progression - ED black protection

- CNC-machined 6061-T6 aluminum with rounded tooth profile to reduce chain wear

Made in the US from 6061-T6 aluminum alloy, Box Two Chainrings are round and true. They fit 104 BCD four-bolt cranks and are available in black anodized with laser-etched graphics from 38 to 45-teeth.

Box Two 24mm External bottom brackets feature cold-forged, CNC-machined alloy cups, dual-labyrinth bearing covers, and precision sealed bearings. They are the perfect match to Box Three, Four cranks, and the ultimate upgrade to the budget BBs sold with most cranksets. Box Two, 24mm External Bottom Brackets, are designed to fit all 24-millimeter crank spindles and frames with 68 or 73 x BC 1.37-inch bottom bracket shells. Features: - Stable Outboard Bearing Position - Precision Abec-5 Sealed Bearings Compatibility: - Compatibility: Box Three, Box Four, Shimano HollowTech II, RaceFace X-Type - Material: 6061-T6 Aluminum - Shell Width: 68mm/73mm - Spindle Type: 24mm - Thread: 1.37 Inch x 24 TPI - Weight: 105 grams / 3.7 ounces Specs: Process: CNC-Machined Cups Material: - Cups: Alloy - Sleeve - ABS Plastic Finish: Anodized Spindle Type: 24mm Shell Width: 68/73mm Thread: 1.37 Inch x 24 TPI (English) Compatibility: - Shell: BSA (Euro) Threaded - Spindle: Box Three, Box Four, Shimano HollowTech II, RaceFace X-Type Weight (+/- 5%): 105 g / 3.7 oz

The Box Four Rear Derailleur is the base of Prime 9 Technology that offers an affordable clutch based 1 by 8-speed derailleur that is simple and light; this makes it a perfect candidate for every entry-level bike that traditionally has a 3 by drive-train that is neither durable nor user friendly.

The Box Three E-Bike Cassette offers high gears with more teeth to withstand the rigors of modern E-Bike riding. Adding an extra tooth to each of the three highest gears provides increased durability and decreased wear by distributing the load over a larger area! The Box Three E-bike cassette draws from both of its Box One and Box Two siblings to create a sensible all-rounder. All cogs are stamped from steel and subsequently, the larger ones are pinned to steel spiders. The main difference here versus Box Two is the use of additional weight-reducing holes on the cogs. FEATURES - Our Best All-Rounder Cassette - Steel Stamped Cogs - Steel Stamped Spiders - Ultra-Wide Ratio with Consistent Progression COMPATIBILITY - Box One Prime 9 Chain 126L DLC Black - Box Two Prime 9 126 Link Chain Nickel - Box Three Prime 9 126 Link Chain Polished - Box One Prime 9 Rear Derailleur - Box Two Prime 9 X-Wide Rear Derailleur Black - Box Three Prime 9 X-Wide Rear Derailleur Black - Box One Prime 9 Single Shifter Black - Box Two Prime 9 Single Shifter Black - Box Three Prime 9 Single Shifter Black

The Box Three Prime 9 cassette is a great all-around cassette option. All cogs are stamped from steel and subsequently, the larger ones are pinned to alloy spiders. It also features weight-reducing holes on the cogs. - The Box Three Prime 9 offers ultra-wide ratio with consistent progressions - Prime 9 technology offers the same range as a 12-speed drivetrain, with fewer gears to shift through - Fewer parts, reduced weight, and increased durability - Cogs pinned to lightweight spiders - Constructed using a standard freehub body (HG) - Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed - Drivetrain Speeds: 9 - Designed for ebike: Yes - Color: ED Black

The Box Three Rear Derailleur simplifies the features found on the Prime 9 Box One and Two rear derailleurs making for a fully featured wallet friendly rear derailleur. Including a Limited Slip Clutch, Sealed bearing pulleys and a solid construction Box Three Rear derailleurs are compatible with 11-46 and 11-50t derailleurs making it one of the most versatile derailleur offerings for Prime 9.

Tested extensively by the Dutch National BMX Team, Damien Godet, Kory Cook, and numerous other elite racers, Box Two™ Freewheels combine durability with lightning-fast engagement. They feature nine, super durable pawls and are available in one of three choices -- 16, 17, or 18 teeth. To install, use the Park Tools™ FR-6 or other installation tool designed for single-speed freewheels with four notches that are approximately 32mm across measured inside to inside and 40mm outside to outside. FEATURES - 9 Pawls 108 [3.3°] Points of Fast Engagement

The Hex Lab 3/32" Titanium Cogs are CNC-machined from bulletproof titanium. They are designed to fit Shimano compatible cassette hubs and have a 5mm wide inner base, giving a more solid interface with the cassette body. Key differences: The Hex Lab 3/32" CNC Titanium Cogs are engineered and crafted for durability without compromising weight. They offer the strength and wear resistance of steel and are lighter than aluminum. As a result, they yield better shock absorption than the Box One Aluminum or Box One Chromoly Cogs. They are available in an oil slick or natural finish. FEATURES - Shimano Compatible Driver - Ti-6Al4V Heat-Treated to HRC35 - 3/32" or 1/8" Chain Compatible - Lightweight + Durable SPECIFICATIONS - 13 tooth: 13 grams (.45 oz) - 14 tooth: 16 grams (.55 oz) - 15 tooth: 19 grams (.67 oz) - 16 tooth: 22 grams (.77 oz) - 17 tooth: 24 g (.85 oz) - 18 tooth: 28 g (1.00 oz)

The BOX Two Prime 9 Cassette delivers long service life and extra range. All cogs are stamped from steel and the larger ones are pinned to alloy spiders. - Cogs pinned to lightweight spiders - Ultra-wide ratio with consistent progression - Prime 9 technology - Compatible with HG freehub bodies - 12 – 50T: Rated for eBike use

The Box Two E-Bike Cassette differentiates itself from its non-e-bike sibling by offering high gears with more teeth to withstand the rigors of modern E-Bike riding. Adding an extra tooth to each of the three highest gears provides increased durability and decreased wear by distributing the load over a larger area! All cogs are stamped from steel and subsequently, the larger ones are pinned to alloy spiders. Due to its provenance, this is, without a doubt, the most durable cassette in the range and perfect for any E-MTB. FEATURES - Our Most Durable Cassette - Steel Stamped Cogs - Lightweight Alloy Spiders - Ultra-Wide Ratio with Consistent Progression COMPATIBILITY - Box One Prime 9 Chain 126L DLC Black - Box Two Prime 9 126 Link Chain Nickel - Box Three Prime 9 126 Link Chain Polished - Box One Prime 9 Rear Derailleur - Box Two Prime 9 X-Wide Rear Derailleur Black - Box Three Prime 9 X-Wide Rear Derailleur Black - Box One Prime 9 Single Shifter Black - Box Two Prime 9 Single Shifter Black - Box Three Prime 9 Single Shifter Black

The Box Four Crankset features a 2-piece design with an oversized bottom bracket interface. The 24mm spindle is pressed into the drive-side crank arm for durability and easy installation. The non-drive side crank arm features a 2-bolt pinch system for added strength. Our unique 4-bolt 104 BCD spider features a flex-resistant ring for optimum performance. Box Four Cranks feature steel pedal inserts that require pedal washers and external sealed bearing BSA bottom brackets, and both are provided in the box. Weight Limit: 115kg (253 lbs) with limitations as per Category 2 of EN 16054:2012 Standard FEATURES - Oversized Bottom Bracket Interface - Dual Pinch Bolts for Even Clamping Force - Spider with Flex-Resistant Ring COMPATIBILITY - Box Two Chainring - Box One Chromoly Chainring Bolts - Box One 7075 Alloy Chainring Bolts - Box Two 24mm bottom bracket - Box Extremum RacePrep bottom bracket

The Box One Prime 9 Rear Derailleur takes the advantages of our legacy 9-speed drive-train but adds the advancements of a modern 1 by; a fully adjustable Tri-Pack Clutch, and an x-wide cage optimized for an 11-50T cassette. Forged construction steps up the durability and performance to an unparalleled level. Suited for the most demanding terrain.

The Box Two M30-P crankset is a slightly less acute embodiment of our Oversized technology for cranksets. We squeeze in a show-stopping Praxis™ made 30mm that’s been cold-forged from 7075 T6 aluminum and then painstakingly ground to precision. You’ll be relieved to know this will all fit in a European bottom bracket. The crank arms and spider are poached from the Box One M35 model and as a result, you get all that hollow-forged generosity to help you put that power down. These cranks are engineered for the larger-sized racers. - Oversized Technology™ Hollow Forged Design - Oversized 30mm Alloy Spindle - Self-Extracting Crank Bolt System - 4-bolt 104 BCD Spider with Flex-Resistant Ring - External BSA 30mm BB Included - Weight: 28.6oz - Drive Side Compatibility: Right Hand Drive - Crankset Style: 2-Piece - BB Style: Euro - Chainring BCD: 104 - BB Included: Yes

Campagnolo's Record Bottom Bracket Cups are perfect for your Campy Ultra-Torque crankset (sold separately). They are constructed from anodized aluminum for light weight and excellent durability. They are available in English and Italian thread. • Italian: 70mm • English: 68mm

- Adapters press directly into specific PF30, BB30, BB86 or BBright frames and allow the use of standard Ultra-Torque (UT) crank sets and EPS components - Updated design increases surface area contact with the frame's bottom bracket, reducing the possibility of noise from frames with slight imperfections - Ultra-Torque OS Fit BB-cup tool is required for adapter installation

Campagnolo ProTech bottom brackets feature a patented external sealing ring design that protects a strong, resilient fiberglass-charged polyamide central tube from the harmful ingress of water, mud and grit. - Designed specifically for gravel riding and racing to protect against water, mud & grit

Campagnolo's Veloce Front Derailleur features an aluminum body and chrome-plated cage for low weight, durability and smooth shifting. And, it's compatible with both standard and compact cranks.

Record chains represent Campagnolo's highest quality and performance chains and are available in 9, 10 and 11 speed versions. - Chrome-Nickel-PTFE finish - Designed specifically for use with Campagnolo 8 and 9 speed drivetrains only - Links (links): 114 - Color: Silver - Width: 6.8 mm - Drivetrain Speeds: 9 - Chain Connection Type: Pressed Pin - Half Link Chain: No - Weight: 300 grams

The Campagnolo C13 EKAR Chain was developed specifically for the EKAR 1x13-speed gravel system. - Wide-narrow design allows for efficient drive, smooth shifts and high security - The narrow profile is lightweight, strong, and efficient - Strong, durable, links feature different grades of steel and coatings for strength and to withstand wear - Unique ultrasound bath lubrication impregnation system for long chain life - Uses a classic pin chain connector Specifications: - Links: 118 - Chain Connection Type: Pressed Pin - Drivetrain Speeds: 13 - Weight: 242g