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CROOTHTH
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49 Reviews

High-quality alloy chainrings for single-ring mountain bike use with an thick-thin tooth profile to help prevent chain drop.

  • 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, and 10-speed compatible

Full Description
From £19.99

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Summary

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32t / Black
4 in stock £19.99
34t / Black
15 in stock £19.99

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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Reviews

  •   Feefo Reviewer
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    •  5

    Nice quick service

  •   Feefo Reviewer
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    •  4
    •  5

    As Above

  •   Feefo Reviewer
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    •  5

    Pyr tuli kahdessa eri lhetyksess, eri pivin, jlkimmisest paketista ei annettu mitn seurantakoodia. Aiheuttaa turhaa hmmennyst.

  •   Feefo Reviewer
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    •  5

    Great ring - only lasted a year on the bike but I guess its because it gets used all the time rather than the granny/ middle combo I used before sharing the wear.

  •   Feefo Reviewer
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    •  5

    Great company. Delivers as soon as they can always.

  •   Feefo Reviewer
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    •  5

    smooth and not a single chain drop since now.

  •   Feefo Reviewer
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    •  5

    Good service

  •   Feefo Reviewer
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    •  5

    Had an issue with the wrong size item arriving but in the correct packaging. Was sorted out really quickly and professionally. Very happy.

  •   Feefo Reviewer
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    •  5

    Great narrow wide chain ring and looks the business on my 456. So far no dropped chains so I'm a happy rider.

  •   Feefo Reviewer
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    •  5

    Good

  •   Feefo Reviewer
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    •  5

    It's good. Make it 11 speed compatible though.

  •   Feefo Reviewer
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    •  5

    The pure essence of mountainbiking, 456Evo2 , 140mm fork, 780 bar, 2,4 tires and Ringmaster 1x10 setup. "Keep it zimple zucker"

  •   Feefo Reviewer
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    •  5

    Ok

  •   Feefo Reviewer
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    •  5

    Not suitable for 11-speed, heavy compared to other companies, looks not as good as others

  •   Feefo Reviewer
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    •  5

    32T34T

  •   Feefo Reviewer
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    •  5

    Exactly what I wanted at a very reasonable price

  •   Feefo Reviewer
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    •  5

    Just as good as rings 3 times the price

  •   Feefo Reviewer
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    •  5

    Great

  •   Feefo Reviewer
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    •  5

    Always delivers first class goods and service