Out riding yesterday when the shock locked down – doesn’t seem to have lost air when measured on the shockpump but is locked down i.e. about 10mm of 40mm of shaft is showing. 10 yr old shock – thinking some internal seal has failed – off to TFT or is it a home service job?

Thamks

Paul

It’s cavitated. A seal has gone so the damping oil mixes with air causing it to foam and then lock out. Not a home job unfortunately.

£75 including full strip down, clean, new seals, etc at Loco Tuning

Happened to me twice, first time was when the bike was 4 days old so I sent the shock back to get sorted. Second time it was about 3 years old so I sorted it my self. Google it for a how to guide , it does say you should never do it yourself but I lived. It did make a rather loud bang v

As said above, can be done at home, usually an air seal leaking pressure into the negative chamber, but at 10yrs old it’ll be due a proper service.Don’t be tempted to pump it up, it’ll make it worse (bigger bang when the can’s unscrewed).