612 Track rings are the perfect compliment to any 144mm B.C.D. crankset. They are made from 7000 series aluminum and feature a lovely and durable anodized finish. - BCD: 144 - Chain Compatibility: 1/2-inch x 1/8-inch

• Perforated leather top • Ti/CrN rails • 290 grams

The All-City Master Dropout is a sliding dropout system consisting of replaceable dropout plates and fixing hardware. Designed for use with 12mm thru-axles and flat-mount brakes, it is compatible only with select All-City models. - Allows riders to convert from a geared to single-speed setup or vice-versa - Compatible only with select All-City models - No additional chain tension adjustment required - Threaded cap / nut for axle installation - Cap nut and O-ring included - Use with drive-side plates

The Pursuit Special is All-City's addition to the pantheon of high end track chainrings. They were designed in house by track racers for track racers and are optimized for weight, stiffness, and engagement. These beauties are cnc’d in the USA and utilize a proprietary tooth profile for smooth and quiet operation. The 49-52’s utilize a solid body design with reliefs in the back for weight savings, while the 46-48’s have full cutouts. In sticking with the theme of their aluminum track bike, the Thunderdome, All-City named these rings after Mad Max’s car, the Pursuit Special. - Material: 7000 Series Aluminum - Ring Position/Type: Single

The 612 Track Crank is an extremely stiff and strong 144mm BCD track crank. It’s at home as much on the busy avenues of your city as it is on the boards of the velodrome. All-City sweats the details, so the 612 (Minneapolis’ area code) is cold-forged, resulting in a tight grain structure. The upshot is that it’s strong, which means more riding and less worries for you. It utilizes the classic JIS square taper spindle and comes with a color-matched, 46-tooth, 1/8th chainring.  - Recommended Spindle Length: 110mm - Spindle Interface Type: square taper JIS - Bolt Pattern: 5-bolt - BCD: 144mm - Chain Compatibility: 1/2-inch x 1/8-inch - Weight: 726g w/ ring and bolts - Bottom bracket and retaining bolts not included

The Inverse stem features a CNC'd 6061 aluminum construction with a brushed anodized finish. - Stem Type: Top Load

Smooth, controlled braking is yours with Avid's G2 CleanSweep Rotor. It utilizes cross-drilled technology to dissipate heat and cut weight, giving you a consistent feel at the lever and predictable speed control in all conditions.

Avid takes entry level to a whole new level with the BB5s, which feature ball bearings (where the BB comes from in the name), a melt-forged body and a CleanSweep rotor for excellent stopping power and awesome durability. Plus, an inboard pad adjustment knob lets you dial in the perfect distance between the rotor and the pads, while Avid's ingenious Tri-Align caliper-positioning system perfectly aligns the pads parallel to the rotor in seconds. And, the tool-free pad replacement and adjustment makes quick work out of accommodating for pad wear, so you always have positive, powerful braking.

- Position: Front or Rear - Brake Lever Clamp: 22.2mm - Lever Blade Material: Aluminum - Reach Adjust: Yes

Bolt on Avid's Shorty Ultimate Brake Pads for excellent braking no matter the conditions. The easy-to-use cartridge design makes swapping pads a breeze.

Avid's BB7 is the mechanical-disc brake that raises the bar. It boasts dual pad-adjustment knobs and Avid's ingenious Tri-Align caliper-positioning system so you can dial in perfect braking in seconds. The BB7 also utilizes precision actuation and variable spring tension to give you serious stopping power and out-of-this-world modulation. And, this setup comes with Avid's CleanSweep rotor for consistent, powerful braking and tool-free pad replacement for easy maintenance.

This upgraded version of the BB7 has a durable anodized finish and stainless steel hardware. - For use with with long cable-pull levers - Pad retraction and spring tension are adjustable - Includes steel-backed organic pads - Caliper has 74mm mounting bolt spacing; mounting adaptors are sold separately - Brake Caliper Type: Post Mount - Brake Lever Actuation: Long Pull - Rotor Included: No - Weight: 204 g

This upgraded version of the BB7 has a durable anodized finish and stainless steel hardware. - For use with short cable-pull levers - Pad retraction and spring tension are adjustable - Due to the shape of the brake pad installation tabs, this model is not compatible with Centerlock or HSX rotors - Includes steel-backed organic pads - Caliper has 74mm mounting bolt spacing; mounting adaptors are sold separately - Brake Caliper Type: Post Mount - Brake Lever Actuation: Short Pull - Rotor Included: No - Weight: 204 g

Avid's Elixir 1 Hydraulic Disc Brake offers excellent power and modulation. Avid's Taperbore technology and Power Reserve Geometry deliver great control and lever feel. Increased power comes courtesy of a super-stiff, 2-piece caliper that contains larger pistons and DOT 4 fluid for better heat dissipation and resistance to brake fade. Plus, the Elixir's unique integrated reservoir provides a major weight reduction and a sleek look. It even comes complete with Avid's 160mm CleanSweep rotor.

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.

The Box Two shifter is the only shifter on the market (other than our Box One) that comes factory stock with a hinged clamp. Box Two is our performance tier so this shifter still maintains the durable cast aluminum top shell but trades out the Box One's 1-piece pull-lever for a 2-piece resin and steel variant. All Prime 9 shifters take advantage of the 9-speed's inherent durability, simplicity, and reliability. Not only is the shifter mechanism joyfully simplified, but fewer shifts are needed for every mile of travel. And the best part is? Prime 9 is also terribly forgiving so you won't have to constantly adjust your set-up. Available as a multi-shift (pull several gears at once) or single-shift shifter (a sound choice for e-bikes).

The Box Two shifter is the only shifter on the market (other than our Box One) that comes factory stock with a hinged clamp. Box Two is our performance tier so this shifter still maintains the durable cast aluminum top shell but trades out the Box One's 1-piece pull-lever for a 2-piece resin and steel variant. All Prime 9 shifters take advantage of the 9-speed's inherent durability, simplicity, and reliability. Not only is the shifter mechanism joyfully simplified, but fewer shifts are needed for every mile of travel. And the best part is? Prime 9 is also terribly forgiving so you won't have to constantly adjust your set-up. Available as a multi-shift (pull several gears at once) or single-shift shifter (a sound choice for e-bikes).

- Superlight co-molded nylon shell and carbon fiber seatpost specifically for BMX Race - Large saddle has a 27.2 seatpost, while the small has a 22.2 post

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.

- Cold-forged, CNC-machined 6061-T6 aluminum with built-in return spring - Clamp integrates with ODI Lock-On grips - 50g

- Forged, CNC-machined 6061-T6 aluminum with hollow CrMo hex bolts - Open skeletal design and a dual mid-bolt wedge mounting system - 1" or 1-1/8" steerer clamp

All Box stems are engineered and crafted using our Oversized Technology. As we follow the load paths down the handlebars we have focused our attention on the stem-to-bar interface. Since the Oversized handlebars have an increased wall thickness and tube diameter in this sector we have reciprocated with an augmented stem interface with greater surface area. We’ve done this by moving material from low stress areas. This has greatly minimized twist and contributed to responsiveness. As the stem in mated with the handlebars we have contributed to increased pedaling stiffness by providing a backstop to the “lifting” phenomenon. There is no point pushing hard on your pedals if you can’t pull up on your handlebars and deliver that power. Power can easily be lost to handlebar-to-stem deflection and the consequences can be poor power delivery and steering control. When combined with Box’s other Oversized components, you’ll experience heightened responsiveness and reduced latency. Key differences: In this particular model stem we’ve tailored the Oversized strategy to favor utility and access. The geometry has been altered to allow for easy handlebar removal while at the same time scavenging material from low stress zones. Ideal for those who don’t want to compromise on user experience to gain performance. These stems are engineered for the larger-sized racers.

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 One multi shifter is the only shifter on the market that comes factory stock with a hinged (and machined) clamp. It's top of the line and comes packed with other features such as a durable cast aluminum pull lever and top shell. All Prime 9 shifters take advantage of the 9-speed's inherent durability, simplicity, and reliability. Not only is the shifter mechanism joyfully simplified, but fewer shifts are needed for every mile of travel. And the best part is? Prime 9 is also terribly forgiving so you won't have to constantly adjust your set-up. Available as a multi-shift (pull several gears at once) or single-shift shifter (a sound choice for e-bikes).

The Box One multi shifter is the only shifter on the market that comes factory stock with a hinged (and machined) clamp. It's top of the line and comes packed with other features such as a durable cast aluminum pull lever and top shell. All Prime 9 shifters take advantage of the 9-speed's inherent durability, simplicity, and reliability. Not only is the shifter mechanism joyfully simplified, but fewer shifts are needed for every mile of travel. And the best part is? Prime 9 is also terribly forgiving so you won't have to constantly adjust your set-up. Available as a multi-shift (pull several gears at once) or single-shift shifter (a sound choice for e-bikes).

Box One Genius brake levers are the first ever to incorporate a clamp for ODI Lock-On grips. This ensures that your grips stay put while eliminating the need for an extra clamp. At roughly 50 grams, these cold-forged and CNC-machined levers beat any other on the market. Genius levers have a built-in return spring and are fully compatible with carbon handlebars. The Mid reach lever features a new design that puts it in the same reach position as the Long, but with a more BMX-specific blade for better one-finger leverage. Other features include adjustable reach, a titanium mounting bolt, and stainless steel hardware. Genius levers are designed to work with linear-pull brakes. They are excellent for BMX, mountain, city, urban, and tandem flat-bar bicycles.

Box One Genius brake levers are the first ever to incorporate a clamp for ODI Lock-On grips. This ensures that your grips stay put while eliminating the need for an extra clamp. At roughly 50 grams, these cold-forged and CNC-machined levers beat any other on the market. Genius levers have a built-in return spring and are fully compatible with carbon handlebars. The Mid reach lever features a new design that puts it in the same reach position as the Long, but with a more BMX-specific blade for better one-finger leverage. Other features include adjustable reach, a titanium mounting bolt, and stainless steel hardware. Genius levers are designed to work with linear-pull brakes. They are excellent for BMX, mountain, city, urban, and tandem flat-bar bicycles.

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.

- Cold-forged 6061-T6 aluminum arms, available in 85mm or 108mm - Precision sealed bearing pivots, titanium and stainless steel hardware - Flexible cable noodle and streamlined cable fixing point - 35 millimeters of vertical brake pad adjustment

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