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yes you are right it is a 12t. I am using standard record crank with 53/39 gear. the rear is a 12/25 cassett. I see that when in small rear 12t and large front 53t that the chain angle is not optimal. the chain is much straighter in the next position which happens to be a 13t cog. should i...

I usually start out in a lower gear and ramp up the pace. I then shift into top gear and begin my sprint. I am a large guy at 6'4" and 200 lbs. I have found this to be the most efficiant for me. I know this is not the traditional way to do this. I can however produce great power in this gear and...

yojimbo. I did not replace the front chain rings. I would have thaught they would have checked this at the shop at the time. I dont wish to take it back to them. I will look for wear indications on my own. when the rear cassett was replaced It was due to chain slip. I replaced rear and chain at...

the chain an casette were replaced together. The problem only occors when standing and sprinting. The chain seems to bind and then you hear a pop and the chain comes off. I was wondering if this is a component problem or a frame issue. could it be the rear stays torquing to the drive side due to...

If it helps the bike shop said that the chain was to short so they added some to it. they also said they adjusted all the cables. I am thankful despite how hard i have gone down the bike has escaped with no other damage.

the wonders of modern medicine. yes 5 weeks ago and started riding again after 3 weeks. I have been taking a heavy dose of meds and growth hormone. I guess I wont be riding for a while after todays fall. I think i tweeked my pelvis again but the back is ok. There was a distinct pop when this...

I hope someone can shed some light on this problem. I have a 2003 pinarello prince with campy 10 record group. The problem i am having is that when i am in top gear (big front small rear) and stand up to sprint the chain slips very bad. This problem caused me to go down very hard about 5 weeks...

I just got a frame and my 2005 campy record brake studs are to short to fit through the front fork and rear bracket. can these studs be replaced with longer ones, or will i have to replace the calipers? If they can be replaced where can i get the longer ones?