Yesterday I had a 2015 Giant Propel brought in for a fit, the customer had travelled over 2 and a half hours to see me and hadn't even thought to check his bike before he came!
Given that the bike was only 5 months old (bought Oct '15) I was surprised to discover that the seatpost was stuck into the frame!
I ended up recruiting the help of my customer to give me a hand in getting it out, and when we did so, found that the clamp itsself (a little wedge inside the frame on the propel, a funny design which also means you can't get a torque wrench on properly.. Oops on Giants part!) was corroded into the frame too!
Once I'd managed to get that out, I cleaned both parts up, put in some carbon paste and continued with the fit.. Had the customer not had the fit, and left the post another 6 months, there is little doubt in my mind that that post would never have been coming out!
Please do check your frame/components regularly and keep them well maintained to avoid potentially costly mistakes like these!
I use Morgan Blue grease and carbon paste and really like the stuff! Keep some in your shed and use it to fettle your bikes every now and then!
Here is a picture of the seatclamp design and the corrosion on it!
