chrisk
Hero member
- Location
- Brisbane, Australia
All very interesting ........ what about overall weight, of all these various options?
Fork Cartridge - springs?
- Thread starter phil37
- Start date
phil37
Hero member
- Location
- Lincolnshire
Hi Chris - the high weight of the original spring and the thick wall damper rod would make me think that the "new" setup will be a tad lighter. Speaking of springs - anyone got any suggestions as to the best place to purchase the racetech springs from? - Regards - Phil
Phil
Half a springs mass is considered to be unspung.
Racetech in the UK = PDQ http://www.pdq1.com/brand.php?BrandID=11
Paul H
Half a springs mass is considered to be unspung.
Racetech in the UK = PDQ http://www.pdq1.com/brand.php?BrandID=11
Paul H
phil37
Hero member
- Location
- Lincolnshire
Yes but the tyres or brakes don't know that :
- Thanks for info - regards - PhilHi Phil,
The Honda spring calcs out to an (initial) rate of ca. 8.
From you measurements, I think it could be well foooked. This would match my recent experience of Honda front springs on my 1100 Blackbird, which I am working my way through at the moment. They reportedly start off at roughly 8, but soon sack-out. This is typical of a shorter spring, using limited number of coils and 'series production' grade steel.
The Ceri approach of using lots and lots of coils is great for longevity, the strain (specifically shear stress) in each individual coil is less. Simple, but old fashioned as it is too expensive and heavy for modern manufacturing of motorcycles.
BTW, if you want to go the Wilbers spring route (as I am) Revs Racing may be able to help http://www.revsracing.co.uk/wilbers.php. Though I understand brother Keith supplies this brand???
HTH, Paul H
The Honda spring calcs out to an (initial) rate of ca. 8.
From you measurements, I think it could be well foooked. This would match my recent experience of Honda front springs on my 1100 Blackbird, which I am working my way through at the moment. They reportedly start off at roughly 8, but soon sack-out. This is typical of a shorter spring, using limited number of coils and 'series production' grade steel.
The Ceri approach of using lots and lots of coils is great for longevity, the strain (specifically shear stress) in each individual coil is less. Simple, but old fashioned as it is too expensive and heavy for modern manufacturing of motorcycles.
BTW, if you want to go the Wilbers spring route (as I am) Revs Racing may be able to help http://www.revsracing.co.uk/wilbers.php. Though I understand brother Keith supplies this brand???
HTH, Paul H
Kiwi Laverda
Hero member
- Location
- The wobbly bit of New Zealand
When I did the racetech emulator conversion on the RGS I gave Racetech an email and asked for a recommendation as the web site could not/did not work.
Very helpful and made a recommendation.
My input was
Bike is a 1984 Laverda RGS
My weight is 90 to 100 kg plus gear
Riding style is "spirited"
Their recommendation was "For your use I suggest the .95kg spring rate; FRSP S3234095 "
They work very well and even though I have expanded a bit, they still work well.
Very helpful and made a recommendation.
My input was
Bike is a 1984 Laverda RGS
My weight is 90 to 100 kg plus gear
Riding style is "spirited"
Their recommendation was "For your use I suggest the .95kg spring rate; FRSP S3234095 "
They work very well and even though I have expanded a bit, they still work well.
phil37
Hero member
- Location
- Lincolnshire
Thanks to everyone for their input on this subject - very useful info. I couldn't bring myself to pay well over ?100 for a pair of Racetech springs - so I have had 3 pairs in different rates made up for me by my original spring supplier at a fraction of the cost. - Regards - Phil
