Shimano Alfine CS-S500 Single Sprocket with Chain Guide

Customer Reviews (4)
4.5 / 5| Write your review
£12.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
- Alfine single sprocket with built in chain guide
- Nickel plated for excellent durability
Product Reviews (4)
Questions & Answers (5) Q & A
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Product Reviews (4)
Overall Product Rating 4.5 / 5
Does what it should
By Adrian
04 May 2023
4 / 5
I recommend this product
Bought as a spare for a e-bike, not used yet as first one still in good condition.
By Martin Paul
31 Oct 2020
5 / 5
I recommend this product
ProsGenuine &well made
A rare find if searching for sprocket with chain guard.
Easy to fit once you develop the screwdriver technique for removing the holding clip.
Does Exactly What It Says On The Tin.
By Tim Jones
03 Jun 2017
5 / 5
I recommend this product
ProsEasy to fit and good value
To replace well worn sprocket on my Ridgeback Flight 04's Alfine 8 hub. A doddle to remove old one and fit new. Quick delivery and good price. Very happy customer.
Better Than New
By Highland Mike
10 Nov 2011
4 / 5
I recommend this product
ConsDifficult to fit
ProsGood quality, value for money
I bought this together with chain and chainring to replace the original item on my Ridgeback Nemesis. I have done about 6000miles on the orginal parts so no complaints there. The new sprocket looks better quality too, with a chainguard already fitted. Just a note about fitting it though it is secured in place with a split ring (not a snap ring as shown in the instruction sheet). This is really tough to remove and refit afterwards so allow plenty of time.
Questions & Answers (5)
Is there another option, a 24 sprocket?
10 May 2023
Just a thought is there an option instead 18 / 20 ….. a 24 sprocket model?
Sadly the sprockets are no longer available in this fitting in a 24T SK 11/05/23
Which chain(s) will match with this sprocket please?
03 Jan 2023
Thank you for your enquiry, this sprocket will use a 3/32" chain & Shimano recommend their CN-HG53 chain which is our item number 37928. This chain has 116 links so may need links removed depending on your system.
Kind Regards. JP 09/01/22
What size chain should I use with this sprocket?
23 Aug 2020
Are these Alfine sprockets the same width as the Shimano Nexus ones? (i.e. 3/32 inch)
Hi, yes 3/32. Thanks
Can I use this with a Nexus 8-speed IGH? (SG-8R31)
23 Aug 2020
Yes you can use this on the Nexus however you will just need to factor in the clearance between the chain guard and the frame when installed.
Does sprocket come with chain guard already fitted?
25 Jun 2018
I need to be able to fit the sprocket with the dish facing outwards in order to get the chain line correct.
Yes the plastic guard is factory fitted.