M-Wave Alloy Single Chainset with 170 mm Cranks

Customer Reviews (7)
4.7 / 5| Write your review
£25.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
- Alloy-polished, cold forged crank
- 170 mm, JIS
- Silver steel chainring
- 1/2 x 3/32
- Axle length = 131 mm (Gives 52mm chainline)
122.5mm (Gives 45mm chainline)
Product Reviews (7)
Questions & Answers (9) Q & A
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Product Reviews (7)
Overall Product Rating 4.7 / 5
By Mark
01 Apr 2021
5 / 5
I recommend this product
Used with ZTTO 8 Speed 11-40 Cassette on a utility bike. Now done 700 miles and really pleased. So happy that the utiility bike is now my main bike.
Exactly as described
By Anonymous
23 Oct 2020
5 / 5
I recommend this product
It seems to fit exactly as described and do its job quietly and without fuss. There is a slight buzz on the chain but I expect that will quickly settle as any tiny surface imperfections are worn smooth.
Great value
26 May 2020
5 / 5
I recommend this product
This is a great value, good looking chain set. Follow SJS advise on bottom bracket length
Completely Satisfied
By BeWith
25 Apr 2019
5 / 5
I recommend this product
I am completely satisfied with the workmanship and quality of this crankset. I installed it in 2015 on a Raleigh comfort bike with a Shimano Nexus 8 speed internal shifting hub, so it is equivalent to a single speed application. I like the 33 tooth chain ring because the lower gearing helps on very steep hills, typical of my normal ride. I ride several time a week for about an hour per ride.
Even after 4 years of use there is little, if any, distortion wear on the chain ring teeth.
Good quality for the price
By Paul
24 Jul 2018
4 / 5
I recommend this product
ConsFinish is OK, but good for this price point.
ProsDoes everything that I was looking for with clearances.
Happy with the purchase. Fits the retro bike well and clears the chain guard. The offset in the crank arm also clears the chain stays nicely. Steel chain ring finish leaves a bit to be desired, but runs true. Polish on alloy arms is good enough for the purpose.
If you are after a crank set to use on a retro styled bike matched with a period chain guard, then you can't go wrong with this.
By Dan
05 Jul 2017
5 / 5
I recommend this product
Prosworks well, looks nice, good value
This works fine and is very good value
Does What It Should
By Anonymous
09 Aug 2016
4 / 5
I recommend this product
straightforward steel chainring and alloy cranks. Chainwheel showed burrs from being blanked out, suggesting not a lot of effort at finishing, but it's true and works fine.
Questions & Answers (9)
Can I use crank bolts with this?
14 Jun 2022
I'm replacing a worn 7-speed single 44T chainring. My BB axle takes crank bolts. Would something like Jtek M8 Crankset Bolts fit these cranks?

Or can you suggest an alternative chainset that would work? Thanks.
Thank you for your enquiry, yes M8 crank bolts will be fine.

WD 14/06/22
Best Italian thread BB for this crankset
07 Sep 2020
What Italian thread BB could work for this crankset, considering a 42.5mm chainline? though, the chainline is not that accurate, as it is from another single speed from which I'm going to take the wheels off to put on the Italian frame I need this crankset and the BB for.
Since I have only the bare frame, I don't have any measurements to take.
I'm afraid without any kind of measurements we could not advise.
Does this come with crank arm bolts?
17 Aug 2020
Does this come with crank arm bolts?
No crank bolts are included.

Thanks - 18/08/20
What BB?
31 Mar 2020
Hi, I'm planning to convert my old road bike to single speed with this https://www.sjscycles.co.uk/gear-spares/mwave-single-speed-conversion-kit-for-shimano-w-14-16-18t/ and this chainset. Can you advise which BB i should use? Currently I have a Shimano hollowtech, I know I need a square taper, but not sure what axel length? Thanks.
probably 122.5mm (Gives 45mm chainline) but this is not an exact science.
Can I use this on a 1 x 8 setup?
16 Aug 2019
Can I use this on a 1 x 8 setup?
Yes, but you may need a chain retention device.

Thanks - 19/08/19
Can I use this chainset on a Brompton 3 speed
07 May 2019
Brompton b/b (JIS) is 119mm, we say about this - Axle length = 131 mm (Gives 52mm chainline)
122.5mm (Gives 45mm chainline) so probably on a Brompton chainline is 42mm so 119 might well work, i'm afraid the only way to know is to fit it...sorry.
what does it weigh?
07 Aug 2017
what is the weight of the 46T version?

if substituting for a different single crankset do I have to worry about chainline?
Hi, the weight is 820g. Chain line needs to be considered, your current bottom bracket axle may be the correct length. Thanks.
What Bottom Bracket Do I Need To Maintain Chainline For Nexus 8Spd Hub Gear.
16 Oct 2016
I am considering the m-wave single speed chainset to replace my worn out 10 yr old Shimano nexus chainset. This is for a bike with Shimano nexus 8spd hub gear, which I think has approx. 135mm OLN distance.

With this chainset you'll need a 122.5mm bottom bracket to get the closest chainline to suit your Nexus 8spd hub.

What Size Chain Is This Crankset Compatible With?
19 Aug 2015
Can I use this on a 1 x 7 setup? or will it only work with a singlespeed chain?
Hi, it's 3/32 and yes you can run a 1 x 7 setup. Thanks