Improved chain guide shape delivers smooth shifting at each rear position, even under heavy load
Stiffer, wide inner link design with two pivots increases strength, rigidity and eliminates the need to manually trim the outer chainring - no more chain rub in the big-big combination!
DUAL SIS front indexed shifting with optimized spring tension reduces the shifting effort required to move between chainrings - the result is featherlight downshifts and smoother upshifts
Forged aluminum construction lowers weight without sacrificing durability
COMPATIBILITY & SIMPLE TO USE: Fit seat post size: 34.9mm. Compatible with Shimano, Sram, FSA, Campagnolo type braze on front derailleur. Simply clamp the adapter on the seat tube.
STRONG: The adapter is made of high quality aluminum alloy AL6061 T6. It is also hardened by heat treatment.
LIGHT: The bike adapter weights only 40g or 1.4 oz. I will not add a lot weight to your light road bikes or MTB.
ADJUSTABLE: The height could be adjusted to ensure perfect gear changing position. Please note: The side adjustment is done by the bolts on the front derailleur itself.
Improved chain guide shape delivers smooth shifting at each rear position, even under heavy load
Stiffer, wide inner link design with two pivots increases strength, rigidity and eliminates the need to manually trim the outer chainring - no more chain rub in the big-big combination!
DUAL SIS front indexed shifting with optimized spring tension reduces the shifting effort required to move between chainrings - the result is featherlight downshifts and smoother upshifts
Forged aluminum construction lowers weight without sacrificing durability
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