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On-One Ringmaster Chainring On-One Ringmaster Chainring

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With availability of big cassettes now as wide as their gear ratios, single-ring mountain bike set-ups are gaining more and more ground these days and with good reason: they provide almost as much gearing as their double ring cousins but are lighter, more reliable and less expensive. The On-One Ringmaster now provides the perfect chainring to complement a single-ring build.

Available in either 30T, 32T or 34T, the Ringmaster is CNC milled from 7075-T6 alloy and weighs in at 61g, 63g and 73g respectively on our scales. Thick-thin tooth profiling prevents chain drops without the need for a chain device, further reducing weight and increasing pedalling efficiency as well as limiting chain wear. A 104mm BCD (bolt circle diameter) makes the rings compatible with a wide range of cranksets.

  • Single-ring anti-drop mountain bike chainrings
  • CNC machined from 7075-T6 alloy
  • Available in 30T, 32T or 34T
  • 104mm BCD, 90mm ID
  • 7, 8, 9, 10-speed compatible

Additional Information

Product Code:CROOTHTH
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2 Reviews
From £15.00 Was £24.99 39% off

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30t / Black
Lots in stock £20.00 Was £24.99 19% off
32t / Black
Lots in stock £15.00 Was £24.99 39% off
34t / Black
Lots in stock £15.00 Was £24.99 39% off