Surly Cassette Cog CNC Hardened Cro-Mo - Shimano HG Spline

Customer Reviews (2)
4.5 / 5| Write your review
£39.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
CNC machined hardened SCM 415 Cr-Mo Steel.
Shimano HG Spline, 9Spd spaced.
Ideal for Single Speed use.
Large Anti-Dig footprint on cassette body.
Chrome Plated.
Note: When used in non-9 set-up, additional Cassette spacers wil be required to fill the cassette body.
Product Reviews (2)
Questions & Answers (7) Q & A
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Product Reviews (2)
Overall Product Rating 4.5 / 5
Great for single speed setups
By Thomas Connolley
09 Jan 2021
4 / 5
I recommend this product
Using these sprockets for years on single speed setups. Well made and corrosion resistant for year-round riding. Keep a close eye on chain wear with single speed. Clean and check regularly!
Absolutely brilliant
By Pierre Noel
18 Mar 2019
5 / 5
I recommend this product
ConsSlightly too expensive?
ProsExcellent and beautiful
What a brilliant piece of kit. Very well designed, especially the very thick base to avoid torque destroying the freehub, perfectly engineered and very beautiful. Expensive but worth it.
Questions & Answers (7)
What is the width at the splines?
16 Apr 2023
Trying to work out the spacers I'd require if I used this sprocket. Thank you.
At the base the sprockets are 4.35mm according to Surly. SK 17/04/23
This 3/32 chain and Hope Retainer?
08 Feb 2022
Can I use this with a 3/32 chain and my Hope Retainer chainring? Thanks
Yes it is designed for 3/32
What chain size is this designed to be used with?
15 Dec 2020
Someone asked if they could use a 1/8" chain and you advised that's suboptimal what would be the preferred size? 3/32"?
Yes, a 3/32 chain is recommended for this part.

JK 15.12.20
Can I use with HOPE PRO4 trials/single-speed hubs?
04 Jul 2020
From the looks of your hub, yes as its using the Shimano HG spline freehub.
Can l use this with 1/8 chain
10 Sep 2019
Yes, but it would be sub optimal.

Thanks - 11/09/19
can I use this with Rohloof 500/14 speedhub 2017 ?
24 Feb 2019
Unfortunately these do not fit.

thanks - 26/02/19
Will this fit a Shimano / Sram 11spd free hub ?
17 Aug 2018
Yes, this will fit no problem.