How often would the fork seals on this bike need to be replaced? I had both replaced 4 months / 4,000km ago and one of them is leaking again. Is this the normal life of these seals? Thanks to all who posted - I have good news. The mechanic who completed the seal replacement 4 months ago said he must have accidently damaged the seal during the job and apologised to me for the mistake. Both seals were replaced with a smile and without charge. All's well that ends well and it's really great to see there are plenty of decent people still in the industry. Anyone, no matter how good they are can make a mistake - it's what happens after that's important.