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Problems with new bike Please somebody help(9 posts)

Problems with new bike Please somebody helpDavid Cook
May 2, 2001 9:50 AM
Just bought a new Cannondale 2000si with Ultegra everything. Problem is that my chain keeps trying to jump gears on the back sprocket. I have it on a stand and just spinning the wheels in gear 1-5 and it occasionally, it wants to go to 1-6 and then back again. Sometimes it is actually on 3 different sprockets at the same time. What can be causing this and how do I fix it?

Thanks
Take it back to the shopRetro
May 2, 2001 10:05 AM
If it's a new bike, they should fix it free. From your description, I can't imagine what it could be (it goes up AND DOWN the gears by itself, not just slips to a smaller cog???), but they absolutely ought to make it right, and you shouldn't have to pay for it.
That is, unless you've crashed and bent something. Then it's on you.
Take it back to the shopDavid W. Cook
May 2, 2001 10:37 AM
Thanks for the info. Unfortunately, I bought it from a shop quite a ways from me now. It really is trying to splip into a smaller cog. A friend of mine suggested it may be that the cable has gotten a little loose. But I havent tried that yet.
Probably not a big dealSpoke Wrench
May 2, 2001 10:47 AM
By far the most likely cause for your problem is that your shift cable tension is out of adjustment. That's common on new bikes. I've probably already spent more time thinking about it than it would take me to fix it. My advice is to take it back to the shop that sold it to you and let them fix it.
Thanks Spoke WrenchDavid C
May 2, 2001 11:21 AM
I wish I had your mechanic skills. I was up for about 3 hours trying to fix it last night. I will dig out my bike book and check on that cable tension tonight. Unfortunately for me, I bought it at a bike shop that is quite far from my home (another state) Got a sweet deal on the price, but I never realized how much work goes into a road bike. I always have been a mountain biker.
Other than the skipping chain ...Brian C.
May 2, 2001 10:50 AM
How is that 2000si?
It made my short list.
Just curious
Other than the skipping chain ...David C
May 2, 2001 11:19 AM
Well, havent' had it that long. I guess just long enough to have to make these cable adjustments. Wish there was a bike mechanic school I could take part time. Mountain bikes are not this tough. Anyway, I really like the bike a lot. I did a lot of research on it. Its very well made and pretty light coming in a little under 18lbs for the Ultegra double. I must be honest and say that I love the yellow paint with pearl overcoat. Looks awesome.
Yes, it's eye-catchingBrian C.
May 2, 2001 11:36 AM
Purists might sniff at this, but you can't deny that yellow paint job is awesome.
The 2000si I tried out was a tad too big and had Shimano 105; The bike I eventually bought was my size and has the Ultegra double. Maybe I deluded myself but it seemed smoother for some reason.
What really swayed the decision was the cromoly (sp?) steel frame. I have a Cannondale hybrid and it has been very good, but over the long haul that aluminum beats you up.
Have a great summer of riding!
re: Problems with new bike Please somebody helppmf
May 2, 2001 11:37 AM
You can try adjusting the cable tension using the barrel adjustment on the rear derailer. Its a knob back there on the derailer that you can turn with your fingers (not the two little screws).