Hope Oval Spiderless Retainer Boost

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Bringing you the smoother pedalling benefits of an oval-shaped chainring and the better chain retention of narrow/wide tooth profile, the Spiderless Boost Retainer Ring will transform your mountain bikes (MTB’s) performance. Specifically for use with Hope’s Boost-type cranksets, it offers quiet, low drag operation to enhance your drivetrain. Made from CNC machined 7075-T6 Aluminium it offers you excellent durability at a low overall weight.

Oval Direct mount Retainer ring has a narrow/wide tooth configuration designed for 1x10, 1x11 and 1x12spd setups without the need of a chain guide.

 

• Material:¬†CNC machined 7075-T6 Aluminium
• Finish:¬†Hard anodised
• Compatibility:¬†Hope "Boost" cranksets
• Mount Type:¬†Hope specific Direct Mount
• Tooth Profile:¬†Narrow/wide
• Intended Chainline:¬†51-53mm (Boost 148)
• Speed:¬†9,10 and 11-Speed
• Narrow/wide tooth profile designed to retain the chain without the need for 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
• Weight:¬†28T:¬†57g;¬†30T:¬†63g;¬†32T:¬†68g;¬†34T:¬†74g