Stiffer rear spring

[WoTi]

Is it possible to have a stiffer rear spring for the TRX. The geometry of the dogbones to fit the triumph swingarm,
is bit different and the rear end is a bit soft.. Is the YZF750 rear shock stiffer? Any other ways to make it better?

Karri

[Killerwhale]

Is it possible to have a stiffer rear spring for the TRX. The geometry of the dogbones to fit the triumph swingarm,
is bit different and the rear end is a bit soft.. Is the YZF750 rear shock stiffer? Any other ways to make it better?

Karri

KEDO sells a hyperpro replacement spring:
Hyperpro shock spring

[pwmotorsports]

ktech or racetech both do replacement springs

[WoTi]

OK, thanks. I found something from those sites... The hyperpro seems interesting, there
was nothing about the spring rate, allthougt it was a progressive one. The original TRX one is
9 kg/mm. Racetech had 9.5kg/mm don't know is it progressive..
What about the YZF 750 shock.. the spring rate is 7.5kg/mm is, the linkage much different as
the weight of the bike is not much different and the rear swing fits quite perfectly to TRX???

[youngy]

YZF750 linkage is very different to the TRX, which is why the spring is much softer. The shock is also slightly shorter. I'd suggest you don't want a progressive spring on a rising rate linkage.

You could put YZF750 dogbones on it - they're shorter so pull the shock up more and make it harder.

[WoTi]

Cannot use the YZF dogbones, I have the Triumph swingarm and homemade dogbone system... What is the difference between
the YZf and TRX linkage? The dog bones are shorter, but is the aluminium linkage different (any pics of both
side by side possible if differs???) ? Thunderace seem also having the same aluminium linkage as on the YZF 750. I could get
an YZF linkage if it is different on right direction...