HOPE Spiderless Retainer Chain Ring Boost

Specially 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. Material: CNC machined 7075-T6 Aluminium Finish: Hard anodised Mount: Hope specific Direct Mount Speed: 9, 10 and 11-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 30T: 61g; 32T: 64g; 34T: 72g