CNC-machined baseplates and bike-specific adaptors for TT and triathlon cockpits. One adaptor designed for one fork, machined to that geometry, bolted on.
Parts for your bike.
Choose your bike to see the parts that fit. Every RSTRI part is made to order: tell us your set-up, our mechanic recommends the best option, and we order the parts in for you.
Parts marked Universal fit more than one frame. Not sure what you need? Message us your bike model and we will confirm.
No parts listed for that combination yet. Message us with your bike model and we will check.
Built to spec.
CNC precision machining
Every component is machined from billet aluminium to ±0.1mm tolerance. No casting, no injection moulding.
Bike-specific geometry
Each adaptor is designed for one specific fork geometry, not a universal compromise. Direct-mount fit means zero shimming.
Hard anodised finish
Matte black hard anodising is corrosion resistant, scratch resistant and dimensionally stable.
Hardware included
Every component ships with its mounting hardware, with an install guide and torque specs.
Why bike-specific adaptors make a difference
Universal aerobar adaptors create a chain of compromises (shimming, offset spacers, misaligned cable ports) that introduce flex, add weight and create fit uncertainty. RSTRI's approach is different: the fit is structurally correct from the first ride and the stack height is exactly what your fit demands, not what a universal adaptor happens to allow. For athletes racing on measured positions, this is a foundational upgrade.