Maybe you read one of my previious posts about loosing studs off of my 294's?
I lost about 36 studs front & back last year but only while Mountan Biking. I never lost any studs while Commuting. As 2many said, studs tend to get pulled out while skidding or slipping. I try not to skid while mountain biking and have lost studs only off of the side knobs. I figure that as i roll over rocky terrain, the knobs slip off of the rock as it passes over them and rips out the stud out.
I wrote
bike@suomityres.com an email telling them about the problem and they mailed me a bag of 50 replacment studs and tool for free. Props to them for standing by thier products.
T.J.