A2Z Single Speed Conversion Kit Fits Shimano 8/9 Speed 16 + 18 Tooth

Regular price£14.25

🚚 FREE Standard UK Shipping on all orders over £20

A2Z AD-ONE speed mountain bike conversion kit for 8/9 speed Shimano freehub bodies. Convert your mountain bike into a single speed setup by replacing the rear cassette with either a 16 tooth or 18 tooth gear (both sizes included). Kit comprises:

1x 16 tooth steel cog

1x 18 tooth steel cog

1 x 20mm alloy spacer

2x 7.2mm alloy spacers

1x casette lockring

We ship fast! Our stock levels are updated live and most orders placed before 14:00hrs are shipped same-day (Monday to Friday).

Each product page will show estimated dispatch times.


  • Standard UK shipping is FREE on all orders over £20.
  • Express shipping options are available on checkout.
  • We also offer Click & Collect from our Warehouse Mon to Fri 9:00 to 5:00 - kindly wait until we confirm your order is ready before visiting.


  • Europe standard shipping is £3.99 with an Express option available.
  • We have had to disable shipping to the EU. We hope to be able to resume shipping to more EU destinations shortly.


  • We have had to suspend shipping outside of the UK. We hope to be able to resume shipping worldwide shortly.

We offer a no-quibble 30-days refund policy*. There's no need to contact us before returning your item(s). Simply send it back to the following address:

Sprocket and Gear (Returns), Kingfisher Works, Tag Lane, Hare Hatch, RG10 9SH, United Kingdom

Be sure to include your order number and reason for return. Sorry, but we can't cover, or contribute to, the cost of the return.

* To read our full returns/refund policy please click here.


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Customer Reviews

Based on 1 review
Fabian Blackburn
Single speed conversion kit

Good product easy to fit and very good price