Middleburn 5mm Slickshift 104mm BCD 4 Arm Outer Chainring - Black

£51.70 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Middleburn Outer chainrings have been revised and updated with a new tooth profile to be 8, 9 and 10 speed compatible. The rings are available in a range of sizes.

The 5mm is the thickness of the chainring; later Shimano cranks have a different offset. Slickshift means the chainring has ramps and pins to aid shifting.
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For A Deore M590 Crankset, Would You Recommend The 4 Mm Or 5Mm Chainring?
27 Mar 2017

For use as a replacement Shimano chainring the 4mm option would be the most suitable one, but in reality with a bit of adjusting you could get the 5mm one to work as well.