ZERO Derailleur Pulleys for Shimano 11-speed Winter & waterproof shoes And more tooth engagement on

And more tooth engagement on the cassette means longer cassette life

Tacx and more

They did note that there is an occurrence of diminishing returns with increasing width

Charger Race Day 2 Flight Attendant electronic damper features an automatic three position Compression adjustment (Open/Pedal/ Lock positions) with independent adjustable Rebound

Won’t clog oil filters

ZERO Derailleur Pulleys for Shimano 11-speed Winter & waterproof shoes And more tooth engagement onEnduro Zero Pulley Assemblies use grade 5 ceramic bearings. Races are won and lost by derailleur pulley drag. Sold in Pairs 9 Grams ABEC 5 precision cartridge bearing CERBEC USA Grade 3 Si3n4 Silicon Nitride balls 52100 high carbon Chromium alloy races Races receive 3 cryogenic treatments and a rust proof Magnetite finish "VV" type 2 lip non contact Silicone labyrinth seals Nylon graphite retainer