Offroad Pro-Flex 752

[Elev12k]

The Pro-Flex 752 uses 3 elastomers in the rear triangle. Dimensions for each elastomer:
Height 16mm
Diameter outside 32mm
Diameter inside 13mm
The elastomers in my frame have seen better days.

 

[Elev12k]

New elastomers for the Flexstem ==>

I have tried the stem with the new elastomer on a bike. It is a skateboard truck bushing with durometer/hardness 92 'medium hard'. When I put my full weight on the bar not much is happening. I think I can use a bushing softer than 92.

 

[Mkane]

Who would have thought Just ordered med & soft.

 

[Mkane]

A while back I bought one on ebay. Green. Hard as a rock.?It was touted as a NOS Girven replacement. Never crossed my mind it was 30 years old.
Think man think.

 

[Elev12k]

I experienced the same with my old elastomer. Hard as a rock and I were able to break it with my hands.

 

[Elev12k]

Who would have thought Just ordered med & soft.

Okay, please tell us how they function when you have them installed

 

[Mkane]

These are hard as a rock.

 

[Elev12k]

Nice. That are the old elastomers?

Btw a while ago I bought a Pinerello with suspension stem that looks similar to the Flexstem, but with a steel spring instead of elastomer. I will post a pic soon.

 

[Mkane]

Those are the old units

 

[Mkane]

And