spring rate ?

[gnilrub]

As far as I know they came with 52 on the rear and 4,2 on the front stock. To find out what spring to use on the rear you should meassure the sag. Set it to 30-35 mm without driver and then meassure when you are sitting on it with full gear. Aim at 100-110 mm. For the front some say you should go up here if you go up on the rear and some say that it depends more on what kind of riding you do and your riding style.

[Caravan Monster]

Originally Posted by motopsycho87

I weight 95kg (210lbs) and have a 6.2 on the rear, I haven't checked the front but it feels equally firm.

I'm 101kg and the ohlins importer said 5.8 is correct for me, so 6.2 might be out of range. As I understand, the ohlins shocks, although outwardly similar, are not all the same. In our case, the GGxxxxxx number stamped on top of the shock is what ohlins work from and the spring is specific to.

Thanks for the link for marzocchi springs. Marzocchi corporate representation in the UK seems to consist of a mountain bike shop and they did not sell parts at all, although I managed to get Marzocchi branded fork bushings no worries from Steve Plain (oil and wiper seals are common metric size, so get them anywhere). When / if the ohlins spring ever turns up, I'll see how the sag is looking and whether the forks want heavier springs too. I expect it will be possible to work backwards from the current sag measurements and make an educated guess about fork spring weights if the information is not openly available.

[motopsycho87]

GasGas UK haven't replied in a month also

[Jakobi]

This is where a suspension tuner comes into their own. They will be able to look at your current sag figures, test the current spring rates, and then change them as required. All that money that charge is for the tooling and knowledge, more than just the work that they do.

[32:1]

Originally Posted by Caravan Monster

Biketech is worth a go for GG parts - he allegedly keeps more stock than GGUK and has a lot of experience regarding riding and working on GG bikes, old school to deal with, only phone and don't bother emailing. Steve Plain is good too, and sometimes has reasonably priced goodies like decent second hand wheels from the race team.

I would give the WP forks a miss - KYB conversion probably better if that's the road you want to go down (there's some KYB conversion threads on here), although it might be worth setting up the Marzocchis right - they are sprung for an 80kg rider from the factory, so will be miles out if still standard.

RESULT
Called Steve Plain and they took info and called back within the hour with specs and prices. Shock spring had to be ordered but at least Ive got it sorted out, even bought other parts from them too..

Any Gasgas owners need parts / advice give them a call

Chris....

[motopsycho87]

What did he recommend and prices?

Tried the racetech suspension guide and it seems to think 4.6 - 4.8 on the front and 5.8 on the rear

[motopsycho87]

Just found this on my travels

http://www.demon-tweeks.co.uk/motorc...s-race-springs

would anyone be so kind as to measure their springs free length and internal diameter?

I believe the Ohlins are 275mm long and 59mm ID.

Thanks !! (PLEASE HELP!!!)

[gnilrub]

Originally Posted by motopsycho87

Just found this on my travels

http://www.demon-tweeks.co.uk/motorc...s-race-springs

would anyone be so kind as to measure their springs free length and internal diameter?

I believe the Ohlins are 275mm long and 59mm ID.

Thanks !! (PLEASE HELP!!!)

Mine is 59, 273 so you are probably right.

[motopsycho87]

Even cheaper from their site !!!

http://www.dfaulknersprings.com/acat...rd-Spring.html

And people seem to review them well!

[Caravan Monster]

Pleased to hear Steve Plain sorted your parts 32:1

Motopsycho, I ended up with a 5.4 Faulkner spring from proracing, which has transformed how the bike rides, much, much better. I'll get to a practice day and see how the bike goes on a proper track. He also suggested a shim change to the Marzocchis which should make them more suited to the type of terrain we encounter in the uk.