Avid Shorty Ultimate

The Avid Shorty Ultimate is a purpose-built cantilever brake designed for cyclocross-style use where mud clearance, modulation and low weight matter. Constructed from machined aluminum, the Shorty Ultimate delivers reliable stopping power while keeping rotating mass and overall bike weight low — this single front unit weighs just 115g.

The brake’s open-arm architecture is engineered to shed mud and debris on wet courses and rough winter rides. That open design, combined with a road-type cartridge pad system, gives predictable bite and easy pad changes when you’re working in the pits or the garage.

The Shorty Ultimate uses an all‑aluminum caliper body with precision machining for stiffness where it counts and slim sections to reduce weight. The cartridge-style pads accept replaceable inserts for fast servicing and consistent performance across conditions. Aluminum arms are corrosion-resistant and the exposed design prevents mud build-up — a practical advantage over enclosed systems.

Key identifiers: SRAM model ID RB-SRTY-U-A1 and Manufacturer Part #: 00.5115.028.030. This single‑position unit is available as front or rear variants in black finish and ships in compact packaging (6.3" x 2.5" x 6.6", 0.5 lb).

The Shorty Ultimate is compatible with standard road brake levers and traditional cantilever cable routing. It accepts road‑type cartridge pads and will work with standard cantilever bosses on cyclocross and vintage-style frames. The brake is designed for mechanical setup with a straddle cable — typical of cantilever systems — and provides the lever feel road riders expect.

When fitting, check boss spacing and post height to ensure full pad contact across the rim. Because the Shorty Ultimate is sold as single units (front or rear), order matching front/rear pieces or pair with a Shorty rear for symmetrical performance.

The Shorty Ultimate is aimed at cyclocross racers, winter commuters and riders who favor rim brakes for low weight and simplicity. If you pedal muddy fields, need easy pad swaps in a pit, or run classic road levers on a drop-bar gravel or CX bike, the Shorty delivers a focused, mud-shedding solution.

It’s also a smart choice for anyone restoring a classic cyclocross or road/gravel frame where disc retrofit isn’t desired — offering modern pad convenience with period-correct caliper style and reliable modulation.

When choosing cantilever brakes, confirm frame/fork boss compatibility and whether your levers produce the correct cable pull (road levers are ideal for the Shorty Ultimate). Consider pad compound — cartridge pads let you swap compounds (soft for wet, hard for dry) quickly between races or seasons.

Measure the intended brake position and rim clearance to ensure the Shorty Ultimate provides full contact without rubbing. If you run heavy loads or very large rims, verify stopping power and modulation in a test ride; for most cyclocross and gravel setups this design balances weight and performance well.