Hope Spiderless Boost Retainer RingSpecially designed for use with Hope’s “Boost” compatible mountain bike (MTB) cranksets, this Spiderless Boost Retainer chainring adopts the direct mounting system and the “narrow/wide” tooth design. This tooth profile results in outstanding chain retention over the toughest trails, removing the need for a chain device on your bike. Made from CNC machined 7075-T6 Aluminium, it runs quietly, reduces drag and it’s ready for use with the wider chainline on “Boost” type mountain bikes.Features: Material: CNC machined 7075-T6 Aluminium Finish: Hard anodised Mount: Hope specific Direct Mount Speed: 9, 10, 11 and 12 speed Tooth Profile: Narrow wide Intended Chainline: 51 - 53mm (Boost 148) Narrow/wide tooth profile designed to retain the chain without the need of a chain device Direct mount retainer ring designed specifically for Hope cranksets Saves weight without the need for a separate spider Able to run a broader range of smaller chainring sizes Quieter drivetrain and less drag Ultra-durable and increases longevity Not suitable for use with Shimano 12 speed quick links Weight: 26T: 49g; 28T: 56g; 30T: 61g; 32T: 64g; 34T: 72g; 36T: 80gBuy Hope Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.
