bryan
Guest
wp,wirth or progressive? any views,experience good or bad?
Sean Kelly
Registered user
I had new internals with damping in each leg and custom wound springs built by Maxton Engineering. Lovely they are too.
Just to add to the options....
Just to add to the options....
boerenmotor
Guest
I've got Technoflex fork springs in my '91 R100 GS PD and I can only say that there brilliant.
First I bought a rear shock from them and was so impressed that afterwards I also upgraded my forks with a set of their springs.
I ride my bike on and off the road and the supspension has never let me down
Technoflex are a Dutch company and can be contacted through their website at www.technoflex.nl (website also in English)
regards,
\/\/|/\/\
First I bought a rear shock from them and was so impressed that afterwards I also upgraded my forks with a set of their springs.
I ride my bike on and off the road and the supspension has never let me down
Technoflex are a Dutch company and can be contacted through their website at www.technoflex.nl (website also in English)
regards,
\/\/|/\/\
judge
Registered user
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Progressive r us
Progressive springs fitted in mine and the improvement over standard is immense - especially with regard to helping old the weedy old two-pot front brake
Progressive springs fitted in mine and the improvement over standard is immense - especially with regard to helping old the weedy old two-pot front brake
Howard Millichap
Registered user
Have never felt the need for new/different springs. I just played around with oil viscosities. Makes a huge difference to how it all feels and handles.
Try :- 16.25W (mix 75% 15W & 25% 20W)in LH leg.
15W in RH leg.
It'll cost a lot less than a re-valve. If it doesn't work for you then you've lost nothing.
Try :- 16.25W (mix 75% 15W & 25% 20W)in LH leg.
15W in RH leg.
It'll cost a lot less than a re-valve. If it doesn't work for you then you've lost nothing.
Spanish Bob
Guest
Howard
Excuse my ignorance, but why are the viscosities different in the two legs?
bob
1990 R100GS
Excuse my ignorance, but why are the viscosities different in the two legs?
bob
1990 R100GS
bryan
Guest
A couple of follow up points ,
andy,what is the free length of the progressive springs?
progressive quote 22.75".......about 5" longer than originals if mr haynes is correct ?
wim ,the technoflex tel no for england doesnot work ,do you know the free length and the spring rating (in lbs or metric equivalent ) for these springs?
thanks
bryan
andy,what is the free length of the progressive springs?
progressive quote 22.75".......about 5" longer than originals if mr haynes is correct ?
wim ,the technoflex tel no for england doesnot work ,do you know the free length and the spring rating (in lbs or metric equivalent ) for these springs?
thanks
bryan
boerenmotor
Guest
Bryan,
I'm sorry but I don't have any data on the springs, you might want to email them. (if they don't speak English I can do it in Dutch for you)
All I can say is that the Technoflex springs are longer than standard. They also supply SAE 7.5 fork oil with the kit, if I'm not mistaking the standard oil is SAE 5.
The amount of oil in the forks is unchanged.
\/\/|/\/\
I'm sorry but I don't have any data on the springs, you might want to email them. (if they don't speak English I can do it in Dutch for you)
All I can say is that the Technoflex springs are longer than standard. They also supply SAE 7.5 fork oil with the kit, if I'm not mistaking the standard oil is SAE 5.
The amount of oil in the forks is unchanged.
\/\/|/\/\
Zwerver
Registered user
This is exactly what the mechanics at my dealer did for the police
BMW's back in the '80... and it worked great!
If you want to try other forksprings, take a look at de Hobbyist , this is a BMW-parts shop with a lot of experience with airheads...
As far as I know they still sell forksprings on a no good - money back base...
Howard Millichap
Registered user
The forks on the R100GS are made by Marzocchi and it is common with Marzocchi forks to have one leg doing the compression damping and the other leg doing the rebound damping. Hence the need to have different viscosities in each leg.
Incidently as an aside. The forks on the CBX750 Honda wot I had some years ago had the same arrangement. Though Honda (Showa) had put adjusters on each leg so there was no need to play with the oil thickness.
Incidently as an aside. The forks on the CBX750 Honda wot I had some years ago had the same arrangement. Though Honda (Showa) had put adjusters on each leg so there was no need to play with the oil thickness.
Big Al
Guest
Howard,
Is your fork oil mixture method (presumeably to harden the dampening and avoid uprated fork springs) particularly sensitive to rider weight. I'm no 70kg Arian that these bikes were probably designed for. I'm a 105kg flightless Kiwi variety.
Since I have the forks stripped and clean on the bench top as I write, I'm open to words of great wisdom.
Is your fork oil mixture method (presumeably to harden the dampening and avoid uprated fork springs) particularly sensitive to rider weight. I'm no 70kg Arian that these bikes were probably designed for. I'm a 105kg flightless Kiwi variety.
Since I have the forks stripped and clean on the bench top as I write, I'm open to words of great wisdom.
The original post was 5 years ago so most of the guys who posted are no longer around.
Big Al? At 105kg you would be a lightweight compared to most GSers over here
I'm 114kg - I tried the fork mix but didn't see any real benefit. Try 10W or 15w instead of the 5w recomended. Obviously the mix only works for skinny riders
Big Al? At 105kg you would be a lightweight compared to most GSers over here
I'm 114kg - I tried the fork mix but didn't see any real benefit. Try 10W or 15w instead of the 5w recomended. Obviously the mix only works for skinny riders
Any recent thoughts on which progressive springs are "better" than the others as I'm looking at upgrading the rear , it seems a bit pointless doing that and not looking aat the front 
BTW it would be with a 100kg rider, lighter pillion and luggage at best / worst and me at 100kg at the lightest, so am guessing the oil cocktail isn't the only upgrade that would be needed
, it seems a bit pointless doing that and not looking aat the front BTW it would be with a 100kg rider, lighter pillion and luggage at best / worst and me at 100kg at the lightest, so am guessing the oil cocktail isn't the only upgrade that would be needed
I wouldn't know but...
The HM concoction doesnt work for me.
I have upgraded springs for sure, as the fork isnt diving as with the originals, but I bought the bike with them and the previous owner isn't technicaly observant, to say the least.
I tried the Howard M recomendations, it made the fork unforgiving for me, however I'm 71Kg in winter, a lttle less in warmer seasons..
Miky
The HM concoction doesnt work for me.
I have upgraded springs for sure, as the fork isnt diving as with the originals, but I bought the bike with them and the previous owner isn't technicaly observant, to say the least.
I tried the Howard M recomendations, it made the fork unforgiving for me, however I'm 71Kg in winter, a lttle less in warmer seasons..
Miky
Bugger Me 
Lazarus has risen again
7 year old thread resurfaces
Is HM's mix the same for mono fork legs ???
Lazarus has risen again
7 year old thread resurfaces
Is HM's mix the same for mono fork legs ???
Bugger Me
Lazarus has risen again
7 year old thread resurfaces
Is HM's mix the same for mono fork legs ???
I wouldn't think so proff
They usually only have standard ones not Marzocchi's who like
to complicate things and we know how much you dislike complication
brassmonkey001
I should change this
71Kg??!?!!??!!
Nurse - this man needs 1cwt of pies, stat!
I would think the standard oil weight should be fine for you.
bumpmuncher
Registered user
71Kg??!?!!??!!
Nurse - this man needs 1cwt of pies, stat!
I would think the standard oil weight should be fine for you.
yup +1 on the pies you sure you are not too light to get the supenders working properly
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