Sram Red Powerdome cassette on Fulcrum - HELP AM I GOING MAD

nagray

Hi,

I have been running a mix of Shimano Dura Ace 7800 and Ultegra on my road bike but decided to move over to Sram so have been buying and selling on ebay to make the transition. I am nearly there with the Red Powerdome cassette the last piece in the jigsaw.

My new cassette arrived and I was wowed by the weight and quality was good too. However it will not go on my Fulcrum Zero wheels/hub. I was running an ultegra cassette previously and all literature says sram is compatable with shimano. Unless I am losing the plot it definately won't go on. the two single smallest sprockets will go on but the main block / hole is too narrow. (The free hub body has a narrow section at the top but the main part is a couple of mm wider)

Please help!

Cheers

Nick
Nick

maddog 2

use a Dura Ace one instead . I had a Sram Red cassette and the shifting wasn't very good and it was noisy, so I sold it on. Now on DA and it's almost as light but much better in use.

But to answer the original question... the Red is compatible with Shimano freehubs (i've fitted one) but maybe the Fulcrum freehub is different. i know they do a Red-specific freehub so maybe you need that (ouch, more cash). Like I said, I'd flog it on or return it.

louismichaels

How old are your wheels?
My Fulcrum 1's were supplied with an Ultegra cassette. I came to change to SRAM but it wouldn't fit. It seems that a while ago, Shimano made some freehub bodies with high splines and a matching cassette. These cassettes would fit on normal freehub bodies, but standard cassettes would not fit on the high spline body. They did this for only about a year before going back to normal.
It seems that Fulcrum made a similar matching freehub body too.
I ended up buying a new freehub body from CRC and the SRAM cassette then fitted fine.

Jim Walker, who distributes Fulcrum, are very helpful for these sort of queries.

redddraggon

AFAIK SRAM cassettes are not compatible with "10spd only" Shimano Freehubs.

nagray

Jim Walker are indeed very helpful, I emailed them direct and got this back:

Essentially there are 4 types of body;

1)- Campag (For Campag)

2)- Shimano HG 8-9-10 (Superceeded and being replaced by Shimano Multifit) (For 8-10 spd Shimano with a small sprocket of 13T and up and SRAM)

3)- Shimano HG8-9-10 (For Shimano with a small sprocket of 11T or 12T)

4) - Shimano Multifit (For all Shimano and SRAM)

It would appear you have the HG10 body which has the step down for 11t or 12t sprockets, in order to run SRAM you will need the Shimano Multifit or Shimano 8-9-10 type. (RS-013/WH-KX890 Freehub HG R3/R1/R0/RS/R)

So, in short I will run a dura ace ... 11-25 Red 1090 cassette shortly to be on ebay

rjsmith

Campag made shimano freehub bodies (i.e. Fulcrum ones as well) do not run SRAM cassettes. You will have to use Shimano.

racingcondor

I suspect Campag made Shimano freehub bodies have moved on to be the same as Shimano Multifit (although I remember seeing several threads from Fulcrum owners who couldn't get SRAM cassette's on). I'm sure you can buy a new freehub body that woud be fine (I'd just run DA though if you've got it).

I'm running (new) Fulcrum 5's on my commuter with a Force cassette. I'd assume Campag took a while to move on from type 3 (per the excellent Jim walker response) bodies.