Cycling UK Forum

Which coast to coast?

(I think the Devon one would be my choice in March!)

I have heard of the modification you mention. As far as I recall, it involves squeezing another cog on the back, but I think it just gives more choice of gears within the existing range.

A simple way to get climbing gears is to have two front chain rings. It does mean stopping for a few seconds to manually swop the chain across (I carry an old tent peg for this to avoid dirty hands) but you end up with a much bigger range. Just remember to pop the chain back onto the big ring for folding.

Hopefully someone will carry out a direct comparison in due course.
(It will be interesting to see how much 'real world' difference the changes make. I suspect the growing Ebike market may be one reason why Shimano have made the improvements.)

Oh yes...

I admit I didn't see the parts list below the diagram; the joys of viewing the Internet on a tiny screen (that's my excuse and I'm sticking to it ).

Looks like there are a total of six parts which are not interchangeable, including the clutch, two carrier units, two sun gears and the hub axle unit. However, the whole internal assembly is interchangeable, meaning that older hubs can still be upgraded with complete new innards.

(Have now received my Alfine 11; just need to get it laced to a rim and the bike build can commence.)

Ah... That may explain why the S700 version is discounted.

It would be interesting to know what changes Shimano have made, if most of the parts are interchangeable between the older and newer versions. (My meagre Google skills have found very little information on the Web, but there was a suggestion that the newer S7001 version is suitable for Ebikes.)

Hi All,

After thinking about trying an IGH for many years (but never quite getting around to it) I have finally been spurred into action by finding Alfine 11 hubs at less than half price.

There appears to be three versions of the 11 speed hub available at the moment: the SG-S705 (which is the Di2 version), the SG-S700 and the SG-S7001. Does anyone know the difference between the S700 and S7001 versions (it is the S700 version which is cheap at the moment)?

Many thanks.

I agree with AndyA's diagnosis.

Had a similar experience - my Brompton started to feel 'loose' at the rear; found the main frame hinge screws partly undone. Easy to fix, but it is recommended that new screws are used and a thread locking compound must be applied. I took the opportunity to re-grease the hinge shaft (taking care to keep the threads clean).
I should point out that my machine is well out of warranty.