Product Overview
Say goodbye to drivetrain mediocrity. This is not just a cage – it’s a precision weapon for riders who demand instant acceleration, buttery-smooth shifts, and zero compromise. Engineered for 12-speed Shimano Di2 and mechanical groupsets, our oversized pulley system rewrites the rules of power transfer. Every pedal stroke feels sharper, every gear change snaps like a rifle bolt – and it looks vicious doing it.
Key Features
- 14T / 18T Pulley Combo – The magic ratio that cuts chain friction by over 30% compared to standard 11T setups. More power to the road, less waste in the drivetrain.
- 100% Real Carbon Fiber Cage – Hand-laid in the USA, not fake “carbon-look” plastic. Ultra-rigid, featherlight, and torsionally stiffer than aluminum – your shifts stay crisp under sprint loads.
- SLF Motion Oversized System – Larger pulleys mean lower chain articulation angle, which translates to longer component life and eerily quiet operation.
- Coated Bearings – Proprietary low-friction ceramic-hybrid coating repels dirt, reduces drag, and laughs at rain and grit. They spin like they’re oiled by angels.
- Hand-Built in Pawnee, Illinois, USA – Every unit is individually assembled, tested, and inspected by real craftsmen. No automation shortcuts – just American grit and precision.
Performance That Speaks
Climb out of the saddle – the cage doesn’t flex. Sprint for the line – the bearings don’t bind. Shift under full load – the chain tracks like it’s on rails. Riders report a palpable “freewheeling” feel in the drivetrain, as if you’ve unlocked an extra 5–8 watts of efficiency. Downshifts are violent but smooth; upshifts are telepathic. Whether you’re racing crits or chasing PRs on your local climb, this cage turns your bike into a predator.
Technical Specs
- Compatibility: Shimano 8100 & 9200 12-speed (both Di2 and mechanical)
- Pulley sizes: 14-tooth upper / 18-tooth lower
- Cage material: 100% unidirectional carbon fiber
- Bearing type: Sealed, coated hybrid-ceramic
- Weight: Approx. 68g
- Finish: Gloss or matte clear-coat over raw carbon weave
- Max chain wrap: Optimized for 11-34T cassettes (works with most standard ranges)
What’s in the Box
- 1× Carbon fiber cage assembly
- 2× Coated bearing sets
- 1× Set of stainless steel mounting bolts
- 1× Adjustment spacer kit for perfect alignment
Don’t just shift – dominate. Get yours before the next climb. 🚴♂️⚡
