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COONIUM Dummy Hub Bicycle Chain Keeper Tool for QR and 12mm Thru Axle

$11.98 (Price correct as of 11/12/2026 11:34 PST · Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

The COONIUM Dummy Hub Bicycle Chain Keeper Tool is a maintenance accessory described for quick release and 12 mm thru axle frames. It is also listed as a dummy rear wheel with uses for cleaning, transportation, chain oiling, brake pad spacing, master link storage, and simple measuring. Check axle type, chain setup, and intended maintenance use before choosing.

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SKU: B094QT4YRW Category:

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Quick Summary

The COONIUM Dummy Hub Bicycle Chain Keeper Tool is a bike maintenance accessory for quick release and 12 mm thru axle frames. It is described as a dummy rear wheel and as a chain keeper tool, with multiple functions for cleaning and transportation.

The same product is also described as supporting chain oiling, brake pad spacing, master link storage, and simple measuring use. It is intended for use with common derailleurs and 1/8 inch chain.

Key Details

Detail Product information and buyer relevance
Brand COONIUM. Useful for matching the exact item.
Product type Dummy hub bicycle chain keeper tool. This is the main product function.
Frame types Quick release and 12 mm thru axle. Check your bike’s axle setup before choosing.
Chain compatibility Common derailleurs and 1/8 inch chain. Confirm this matches your drivetrain setup.
Listed functions Dummy hub, chain oiling, brake pad spacer, master link storage, and simple ruler use.

What to Compare Before Buying

  • Axle setup: This tool is described for QR and 12 mm thru axle frames. Match that to your bike.
  • Chain and drivetrain: It is described for common derailleurs and 1/8 inch chain. Check whether that fits your bike setup.
  • Intended maintenance task: It is described as a dummy rear wheel for cleaning and transportation, so compare that use with what you plan to do.
  • Extra functions: The listed extras include chain oiling, brake pad spacing, master link storage, and a ruler. Confirm which of those matter to you.

Before You Decide

Confirm the axle type, chain setup, and intended maintenance use before choosing an offer. If you need a part for a different axle standard or drivetrain setup, compare another option instead.

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