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Thorn 110mm BCD 5 Arm Reversible Single Chainring 3/32 Inch - Black

Customer Reviews (3)
4.3 / 5| Write your review
£34.99 Please note this product has selling restrictions to your country. was
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SJS Cycles part number : 
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Product Reviews (3)
Questions & Answers (1) Q & A
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Product Reviews (3)
Overall Product Rating 4.3 / 5
A Stainless Version Please.
24 Apr 2016
3 / 5
Conshigh wear rate
ProsRigid, strong, great chain engagement
I'm running these chainrings on both my hub geared recumbent trikes & also a fixed gear bike. The tooth profile is perfect. It engages smoothly but is deep enough so that on my trikes I don't need any chain management to prevent chain dumping on bumpy high speed corners. It also means that you can run the chain aa little more slack of fixed gear for an even smoother pedal motion. They also absolutely refuse to warp even after 10k miles of use even on a log chained trike with high chain tension.

My issue with them is that after 10k miles they're worn out on both sides. With my fixed gear bike this perfect as you swap the direction of the chainring for its second chain & sprocket pair at 5k miles. However, with a 270 link chain this limits chain life to about 10k miles, with stainless chainrings I get 15k out of a chairing/chain/sprocket set.
SJS Customer Service:
sorry we have no plans at present, there are these:
cheers Robin
Chainring For A Fixie
17 May 2012
5 / 5
I recommend this product
ConsOther colours would be nice.
ProsQuality, value.
This is the third Thorn chainring I have bought, with more teeth as my leg strength improves. Good strong part, would like colours other than black for road use just 'cos it's more on trend. Good value.
Tuning My Rohloff Gear 11
03 Feb 2012
5 / 5
I recommend this product
ProsQuality, longlasting, reversible
I altered my sprocket and chainring to get gear 11 just right for level road fully loaded riding.
The old chainring looked perfect after a couple of thousand miles. The replacement is a duplicate apart from having more teeth.
Easy to fit, especially with a chainring bolt spanner to hold whilst tightening the other allen key end of the fixing bolts.
Questions & Answers (1)
Would This Be Ok For A 1 X 10 Road Setup ?
06 Jul 2015
SJS Customer Service:

Unfortunately this chainring would not be suitable, this chainring is designed for 3/32" chains which are a much wider gauge than 10spd chains so a 10spd chain would not sit properly onto this ring I'm afraid.