Rohloff Splined Sprocket Carrier Slim - 8540S

I recommend this product

Only just fitted this with a new splined sprocket, no creaks or movement that I have been able to detect when riding. It has to be a great step forward in sprocket replacement, a couple of years of basically tightening the screw on sprocket every time you ride makes replacing or reversing a sprocket a much easier and less knuckle damaging experience

I recommend this product

Neat conversion kit. Was a bit of a struggle removing the old threaded sprocket, until I came across a YouTube clip showing a chap squeezing the chain whip and adjustable spanner towards each other one handed, rather than trying to push them away from each other with two hands. This conversion will make changing rear sprockets a doddle

I recommend this product

I just replaced the original screw-on type sprocket with the splined carrier on my old Raven Catalyst. As I get older, I realize life is too short to wrangle the dastardly threaded sprockets any longer!

I recommend this product

This is becoming an essential upgrade as availability of threaded sprockets declines. In any event if you’re having to replace a sprocket it’s worthwhile because it makes future sprocket replacement/reversal a doddle. The new Splined sprockets are also cheaper and less bulky to carry as spares on expeditions. You’ll still need Rohloff’s so called sprocket removal tool and a chain whip if ever you need/want to remove the carrier.

I recommend this product

Excellent quality as expected from Rohloff.
Easy to fit - once old sprocket removed.
My old screw on sprocket needed replacing so I took the opportunity to change to the splined version.

I recommend this product

After a couple of times over the years trying to remove the original threaded cog (and succeeding with difficulty!), this solution means you don't need t carry a chain whip and big wrench on a multi-month or multi-year tour. The new replacement cogs are also smaller and easier to carry.

I recommend this product

I fitted it with no problems and it works fine. You do need the tool to remove the old screw on sprocket. (I Had one already.) It would be an idea if SJSC could offer a hire and return on that tool as you should never need it again.