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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

Options
30t / Black
Lots in stock £19.99
32t / Black
Lots in stock £19.99
34t / Black
Lots 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

    Reasonably priced narrow wide chainring for my sons dj bike

  •   Feefo Reviewer
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    •  5

    Good price and has nice mounting features. Works well in 1x10 configuration with a 11-42tooth cassette. Have yet to see how well it will wear.

  •   Feefo Reviewer
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    •  5

    Excellent

  •   Feefo Reviewer
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    •  5

    cheapest n/w ring out there with no obvious shortcuts. easy to fit works great!

  •   Feefo Reviewer
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    •  5

    excellent prices and decent delivery time, packaging was a little flimsy (just a plastic shipping bag) my items arrived unscathed but seemed a bit risky. Happy with the products.

  •   Feefo Reviewer
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    •  5

    God service og super gode priser

  •   Feefo Reviewer
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    •  5

    Got both of my steeds up and running on a 1x10 set up with these rings. Have no complaints, no dropped chains, fitted with existing chain ring bolts - a real bargain option if you are wanting to go single ring up front.

  •   Feefo Reviewer
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    •  5

    Good speedy service and excellent prices!

  •   Feefo Reviewer
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    •  5

    Great ring , great price and very hard wearing . Happy

  •   Feefo Reviewer
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    •  5

    Nice quality and chain retention capabilities but its 6mm thickness may cause some issues.

  •   Feefo Reviewer
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    •  5

    Everything went smoothly!!

  •   Feefo Reviewer
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    •  5

    Ottimo e discretamente rapido

  •   Feefo Reviewer
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    •  5

    I would love the fact tath it is the back bolts bit it still could be a little thinner and a little lighter. But then it would be a little to perfect!

  •   Feefo Reviewer
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    •  5

    Dunno seams ok

  •   Feefo Reviewer
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    •  5

    Don't have a clutch so haven't yet gone completely tensioner free but great quality product at an excellent price.

  •   Feefo Reviewer
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    •  5

    Excellent service, fast shipping and fantastic prices.

  •   Feefo Reviewer
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    •  5

    el precio de los portes es mas caro cuanto mas es el valor de la cesta NO ES NORMAL NI ESTA BIEN

  •   Feefo Reviewer
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    •  5

    Product does what it says on the tin.

  •   Feefo Reviewer
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    •  5

    Used Planet X on numerous occasions for frame and components.

  •   Feefo Reviewer
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    •  5

    Work really well, used it for 2 weeks but so far i Works flawless.