esp shifter derailleur question

[sephscott13]

Right then I've got a esp 9.0 sl woody rear mech and I'm looking for some xray shifters I'm pretty sure I need some esp 900 xrays. I may of found some 7 speed ones can these be used with the 8 speed woody. at the moment I'm running a Severn speed hub with 8 speed cassette with one cog removed cause I was told that 7 and 8 speed cassettes were space differently. So I stuck with the 8 speed to match the mech but if I brought these 7 speed xrays would I need to change my cassette to a 7 speed? And would that cassette be compatable with the 8 speed woody. My god I'm confused wish I'd just stuck with shimano.

 

[Mike Muz]

Re:

Right, first things first.
ESP 9.0SL and X-ray shifters are not compatible. You need ESP 9.0SL shifters with that rear mech.
Or alternatively X-ray shifters with a Shimano rear mech.
7-speed are spaced the same as 8-speed. The 8-speed freehub body is wider to allow for this. You can use just 7 of the 8 sprockets on a 7 speed body.
A Shimano or Sram cassette will work with both ESP 9.0SL set up, as well as X-ray/Shimano mech set up
Hope this helps

Mike

 

[sephscott13]

I was under the impression that esp sram stuff was compatible the shifters I'm look at are esp 900 xrays not srts

 

[FMJ]

Re: Re:

7-speed are spaced the same as 8-speed. The 8-speed freehub body is wider to allow for this. You can use just 7 of the 8 sprockets on a 7 speed body.

Sram and Shimano 7 speed cassette spacing is 5.0mm. Sram and Shimano 8 speed cassette spacing is 4.8mm. With the float in their top pulley, you can get a 8 speed cassette to work with 7 speed shifters with careful setup using a Shimano derailleur, either running 7 cogs with Rapidfire or 8 with X-Rays or Shimano's thumb shifter's 8th "ghost click". It won't be perfect, but it works. It won't work with Sram derailleurs.

 

[FluffyChicken]

Re:

I'll check but I though all ESP900s where 8sp given they are the top of the range shifter.

You are correct and the ESP900 are the sram 'ESP 1:1' shifting Xrays ;-)

 

[sephscott13]

Re:

That's what I thought when it comes to cassette spacing but am I right in thinking that if I use an esp 7 speed xray shifter with a 7 speed cassette I can adjust the esp 9.0 8 speed to just shift over the 7 cogs.maybe?

 

[FluffyChicken]

Re:

I should add that the xrays where earlier than the woody rear mech but shouldn't be a problem.
I would assume they have the same problem as the SRT xrays and they crack at the mounting bolt.

I would have thought there was a matching woody shifter in a more robust Sachs inspired (?) design, much like there is the Betsy version of the ESP9.0 .
You may find just standard 9.0s are easier to get hold of if you prefer better shifters over some cracked nice looking xrays.

 

[legrandefromage]

Re: Re:

I use an esp 7 speed xray shifter with a 7 speed cassette I can adjust the esp 9.0 8 speed to just shift over the 7 cogs.maybe?

No. Cable pull and mech movement will be all over the place.

Mech is 1:1 and has no 'float', shifter is 1:2

A 1mm movement on a SRAM (1:1) is equivalent to a 2mm movement on a Shimano (1:2)

 

[FluffyChicken]

Re: Re:

I use an esp 7 speed xray shifter with a 7 speed cassette I can adjust the esp 9.0 8 speed to just shift over the 7 cogs.maybe?

No. Cable pull and mech movement will be all over the place.

Mech is 1:1 and has no 'float', shifter is 1:2

A 1mm movement on a SRAM (1:1) is equivalent to a 2mm movement on a Shimano (1:2)

Reread LGF,
ESP shifter!

To opp as long as
Shifter 'pull' = Mech 'pull' it will move correctly
Shifter 'speed' = Cassette 'speed' it will index correctly.


but still quite certain ESP900 where only 8sp http://www.retrobike.co.uk/gallery2/v/M ... 1.jpg.html

ESP700/7.0 might have come in 7speed though

 

[legrandefromage]

ESP 9 is listed as 1:1

http://www.disraeligears.co.uk/Site/SRA ... lleur.html