620 Sport Help
 

Hi,

I’ve recently picked up a 620 Sport to join in the DD fun next year (great track selection by the way, well done Chris and mt).

I’d like to refresh my forks with new oil but the previous owner doesn’t know what weight is in there at the moment and suggested I try the forum.

So is the standard recommended 7.5 oil good enough for race/track use, or do I need to try something abit heavier ie 10, 12.5, 15 etc?

If you are going to that level of stripping, you may well want to look at the spings and damping within to go to something more suitable for the race track.
I am sure that one of the DD boys will let you know who is best for this.

You need 50w oil and one of those new Ohlins solid steel rods to firm it up a bit.

HTH :P

Oil for off roaders is good:)

worth asking Maxton's etc...........

I think you'll find it reasonably stiff as std, depending on your weight !
After all, the std suspension is a compromise for single and two-up riding, so may work out ok on track.
A revalve may make it work more smoothly, but personally I would just start with fresh good-spec non-foaming std-weight oil.
If its road legal at the moment ... off you go !

Forks on the sport are waaayyy too soft as standard (unless you're a 30kg frenzied monkey). I have yet to refurb mine (or even check they're straight..... :( ) but you should look at stiffer springs/heavier oil as a minimum.

The only springs I've found so far require the fork tops to be machined (not sure how) so I'm still looking for an easier solution. Let me know how you get on.

Cheers,

Ali

ps: Race Committee, can we please, please have adjustable forks one day? It's a right pain trying to find one setup that'll last the season....

As if that'll help :lol:

It's bad enough deciding what tyre pressure and gearing to run, now you want to fiddle with suspension??? :o

;) :D

youre right about them being soft:o

but, it doesnt take too long to get them right:D the Snot has still got the 'sawn off ends of handle bars' shoved in the top of hers as spacers, which we did at Cadwell Woodland in April:o

:o

:lol::lol:

Oi you, shurrup!!! :D:D:D