🚀 Speed System Cage – 12-Speed (Compatible with Shimano 8100 & 9200)

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. 🚴‍♂️⚡