Sturmey Archer CS-RK3 3Spd F30 Cassette Hub

Customer Reviews (3)
5 / 5| Write your review
£119.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
All new cassette 3 speed hub
- 3 Speed internal gear hub without brake (freewheel).
- Classic 3 speed gear ratio of 177%.
- Compatible with 8 and 9 speed cassettes.
- Compatible with standard MTB / ATB left hand shifters for front triple chainwheel.
- Available with polished and anodised aluminum shell in silver or black.
- Compatible with standard 135mm frame dropouts

Weight - 1155g.

NOTE: Does not include shifter
Product Reviews (3)
Questions & Answers (13) Q & A
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Product Reviews (3)
Overall Product Rating 5 / 5
increased gearrange without any large jumps
By Tim Lilley
25 Nov 2019
5 / 5
I recommend this product
ConsThe lack of a quick release option makes tyre road side puncture repair more challenging
I ride a 20" recumbent trike and have used the hub gear to provide increased gear range without any large jumps. The hub gear also allows for the use of a short drop derailleur which on a 20" wheel ensures the chain is running higher than the wheel rim. As the hub is run in conjunction with a 9 speed block and a triple chain ring in theory I have 81 gears at my disposal.
By Peter Leid
15 Jun 2018
5 / 5
I recommend this product
ConsSee Review
ProsRobust, super quick gear shift, so much better than a front derailleur!!
I must own the only 27 speed Mk3 Raleigh Chopper!
I have an answer to Les Crook's "con"... 1st he's correct the front derailleur works the opposite direction to the SA CS RK3 hub. I have had a window decal made for the gear indicator, so I rubbed the 3 2 1 off the window with alcohol and applied the 1 2 3 to the underside of the gear shift window... all sorted.
Great Product, Great Service
By Les Crook
01 Mar 2013
5 / 5
I recommend this product
Consthe standard MTB left hand shifter works in reverse
Proscheaper than the Sram unit
Bought as an alternative to a Sram Dualdrive. The guys built it into a 20inch rim for my folding bike. I now have a 27 gear folder that is used as a multi mode touring bike even in hilly areas.

The hub was easy to set up due to the excellent instructions supplied. It has needed just a minor tweak to get the indexing spot on. The only anomaly is that the shifter works opposite to normal. In other words when the indicator shows 3 it is actually bottom gear. Just took a little time to get used to it.

I will admit it is not the most refined of units but, it does what it says on the box.
Questions & Answers (13)
What is included?
14 Nov 2023
Does the price include the required hardware to fit the hub such as nuts, antiturn washers, indicator chain?
Thank you for your email, yes the non turn washers, indicator chain, nuts and cable anchorage are included but no shifter or sprocket.

WD 15/11/23
Can I change OLD to 130mm?
19 Sep 2023
Can I remove the nut to fit into 130mm frame?
Sadly you cannot convert this hub to 130mm. SK 20/09/23
Will a Sturmey SLS30 shifter work with this hub?
21 Mar 2023
If not, do you have any recommendations for a bar-end shifter?
Thank you for your enquiry. We can confirm that the SL-S30 bar-end shifter will work with this hub.
Kind Regards. JP 21/03/23
Can I use this with a shimano 105 7000 Gear cassette (11 speed)
30 Jun 2022
How do I order a bombproof rim and spokes to build it mysels please?
For wheel builds please email [email protected] we have not tested this with an 11-speed cassette yet.

JK 01.07.22
Do you have 28 holes? Replacement for sram dd II with 8 speed
25 Dec 2020
We do not stock a 28 hole version of this hub sadly.

Thanks, 30.12.20
can I use this hub on a brompton
06 Dec 2020
I would like to upgrade a brompton and wondered if thus hub would fit which cassette with the most gears could be fitted while keeping everything else standard
As this is 135mm it would not fit a standard 112mm rear triangle, but you could fit a Kinetics triangle. You could then fit an Alfine/Rohloff which would offer a much larger gear range, the option of a disc brake but whilst keeping mostly the same parts.

Can this fit an 11 speed MTB cassette?
07 Sep 2020
Are 11s MTB cassettes the same size as 9s or 10s and therefore would fit on this hub?
Hello, with an 11-speed MTB cassette this maybe compatible however as we have not tested this we cannot guarantee compatibility or suitability.

JK 08.09.20
Does this hub use the standard freehub body? Thank you.
23 Jul 2019
When using a standard left handed MTB shifter, does it need to be indexed or is the hub internally indexed?
Yes, a Shimano 8/9 speed cassette will be suitable.
The internal shifter will need to be SA 3 spd non rotary.

Thanks - 23/07/19
Can I use this with an 11-36 cassette?
09 Jul 2018
I know the spec states 11-34 is the maximum spread, but how rigid are those limits? Can I go 11-36?
The product you have questioned about is a Sturmey Archer hub, you could use an 11-36 on that no problem. Is that the correct product you are reffering to?

Can you offer this hub ready built into a 26inch wheel. If so what would you charge?
28 May 2018
Yes we can offer custom built wheels.

Simply add a suitable rim and spoke/build package to the basket and checkout. If you are unsure please call our sales team directly.

Spoke Lengths Required
12 Jan 2017
I'm upgrading a Mk3 Chopper 5 speed with this hub to a 27 Speed. However the original spokes will not be correct length wise. Can you advise on left side and right side spoke length requirements, or let me have the Flange diameters and Flange centre lengths in MM.
Many thanks
Peter Leid

Without having the rim as well we can't provide the spoke lengths, but we can provide you with the dimensions of the hub. The flanges are both 68mm in diameter. The DS flange to centre is 14mm and the NDS flange is 40mm to the centre.

Could I Possibly Use This With A 10Sp Cassette?
08 Apr 2015
I ask this question as my cassette is quite new and I want to lower the bottom gears on my recumbent trike with out losing the high gears. I have a Sram PG1070 cassette. I was hoping that this spec might have been written before 10sp cassettes were common place.

You are correct in thinking this description was written before 10spd became common. 8, 9 and 10spd cassettes all take up the same space of freehub so a 10spd cassette can be fitted to this hub without any issues.

Sturmey Archer 3Spd F30 Cassette Hub, Csrk3
15 Jul 2014
Hello, can you please tell me what is included in the package with this hub. Thank you

This hub come supplied with the basic fittings (lock nuts, indicator chain, fulcrum clip and cover), it also come supplied with a dust seal to fit behind the cassette and a cable anchorage unit.