Est. delivery Fri, 16 May - Thu, 29 MayEstimated delivery Fri, 16 May - Thu, 29 May
Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Condition:
Brand NewBrand New
Race Tech Fork Springs High-performance spring with extremely accurate rates. Chrome silicon, high stiffness-to-mass ratio, shot-peened, heat-treated and pre-set (no sagging) To convert kg/mm to lbs./in. multiply kg/mm by 55.8 FRSP S3534085 .85 kg/mm
I installed Race Tech fork springs in my 2020 Speed Twin based on Race Tech's reputation. These are not one size fits all progressive springs. RT provides a formula based on rider experience, type of riding, rider weight, etc. As an example, stock springs are 70 kg and have about 50% sag. I weigh 190 lbs and consider myself an intermediate rider and most of my rides are sport riding. The formula recommended 85kg springs. Fork oil weight is the same but height is much different, actually less. Stick setup was very rough. Now it is more compliant on uneven pavement and much less dive under breaking.
Again, setup requires the installer to do some math. These are not plug and play and require some expertise to set up correctly.
But it is worth the work and is the best value in fork springs.