Fixed gear and saddle adjustment

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tyred

Squire
Location
Ireland
As an experiment, I have recently converted my SS Carlton to fixed gear using a spare wheel. Owing to having a cold, I haven't rode it all that much but one thing is bovious to me. Nothing has changed on the bike apart form the absence of the freewheel but the Wrights "B17 clone" saddle which has been unbelievably comfortable for several thousand miles gives me a sore arse very quickly when I ride it fixed. If I put my other wheel with the freewheel back in, it is comfortable. How can this be? FWIW, the gear ratio is the same in both cases.
 

Rob3rt

Man or Moose!
Location
Manchester
Is it possibly because you are leg breaking when riding fixed and hence being pushed out of the seat and then sitting back down a lot? So in effect sort of bouncing on the seat.

Or maybe the increasing cadence when going down hills where you would typically freewheel?
 

GrasB

Veteran
Location
Nr Cambridge
your sitting position is different when riding with a fixed gear as for part of the stroke you legs are being driven by the pedals rather than having a drive dead spot.
 

4F

Active member of Helmets Are Sh*t Lobby
Location
Suffolk.
I had to change my saddle because of this. I had always found a spesh toupe to be the ideal saddle but on the fixed it felt very uncomfortable. Currently fitted with a fizik airione and the jury is still out
 

longers

Legendary Member
I have my saddle slightly lower than I would normally*.

* Seeing as I ride that bike the most nowadays I'm not sure what's normal anymore :smile:
 
OP
OP
tyred

tyred

Squire
Location
Ireland
GrasB said:
your sitting position is different when riding with a fixed gear as for part of the stroke you legs are being driven by the pedals rather than having a drive dead spot.

In way does the saddle position need to be changed for fixed gear?

Anyway, bang goes my plan for having a bike I can easily convert between between freewheel and fixed as the mood takes me.

I think I need another frame....
 

GrasB

Veteran
Location
Nr Cambridge
I have my saddle slightly higher & further forwards on the fixie but the bike is a very aggressive "female" geometry frame, I can't remember how I had the current frames predecessor setup. Basically I just dialled it in by riding & if it didn't feel right adjusting 1 thing at a time, don't adjust the saddle in 2 axis at one time (if you think the saddle wants to go down & back, lower it if that's better then push it further back & try again). The general observation I have is that if it's good for fixie riding then it's fine for freewheel but the reverse isn't always true.
 
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