Ducati Sporting Club UK > DesmoDue Race Series > DesmoDue - General Questions and Chat > 620 Sport Help

[AK]

[phil_h]

Originally posted by CK and AK
youre right about them being soft

but, it doesnt take too long to get them right 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

Did it happen by accident
or did you do that cos handlebars are free

(ali - its a _very_ common mod to forks - even as std on some machines !)

[GlennG]

Thanks for info so far, (except Dom he he if I do the mods you suggest will you swap bikes with me for the first race

As I've not ridden it yet (track only bike at the mo as its currently French registered) I didn't really want to send off the forks to a professioanl as they will most likely be fine as is, after a change of oil.

I was hoping to get an idea of what people currently use in their forks. Then during a practice day I was going to replace current unknown fork oil with whatever the popular weight is (7.5?) and compare.

[Wylie1]

dubelg.....I think I'm right in saying you've bought Tonio's 620ss. If so, I rode his bike for 1 session at TA5 (Brands) & I'd be very surprised if it had standard grade oil in there. It dived a bit (possibly a little bit too much?) when you hit the brakes (which were surprisingly good), but then settled quite nicely.
Speaking to Tonio on the day, I thought Geoff Spencer had given him some advice as to which grade oil/ air gap to try for next year . Whatever it has in there now though, that bike can definitely run at the sharp end even if you left it as it is. I'm not a racer, but even I was doing 57 secs laps without really pushing (as it was a few days before Tonio's last DD round).

If you didn't buy Tonio's bike, just ignore me

[phil_h]

Did you get it off antoine's ducatannonces ?
(which one was it ?)

[AK]

Phil, we did that cos despite them being reworked, they still were not stiff enough for Andy round the Woodland circuit on the then 583 Snotty. The cable tie was not then being broken off at the bottom

5 mins with hacksaw + shove bits inside the tops = better ride

Fil2 - shut it, you nit!

[TP]

I ended up changing springs twice in my forks, going stiffer each time - but I'm a heavy guy and it seems I brake harder and later than some people.

It's not just rider weight, it's how you ride, body position, use of the throttle that determines how it should be and everyone is different.

That's been my experience anyway.

[Edited on 20-10-2005 by TP]

[GlennG]

Thanks for suggestions.

Wylie1 - thanks for info, and yep it's Tonio's 620 Sport.

Looks like I need to to a practise day on the bike with a choice of fork oils and some spacers, to come up with a combination I like.

Cheers

[GlennG]

I finally got round to stripping my forks last night and thought I'd update this old post as it may help future / current 620 Sport owners, knowledge is power an all that ...


I took the springs out of my bent forks last night to confirm what they were and be ready to fit them to the new forks, and now know they are not standard. These springs are single rate with a wire thickness of 5.0mm and ~285mm long. This compares with the standard springs that came in the bikes spares box of being progressively wound and only 4.7mm OD wire thickness and 290mm long.

And although the front end maybe a little soft, it feels pretty good, I just need to avoid hitting stationary bikes in future

[fil2]

Originally posted by AK
Phil, we did that cos despite them being reworked, they still were not stiff enough for Andy round the Woodland circuit on the then 583 Snotty. The cable tie was not then being broken off at the bottom

5 mins with hacksaw + shove bits inside the tops = better ride

Fil2 - shut it, you nit!

eh.........................?...................... ...........u wanna fight do you...