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Cracked a rim on my ride today(4 posts)

Cracked a rim on my ride todaydieselforlife
Aug 31, 2003 9:32 PM
I have a trek 2300 that is 7 speed. Would like to upgrade to 9 speed but i have been told that the rear could not handle the spread. Would it be possable to turn a 8/9 speed wheel into a 7 speed it seems cheaper to buy a prebuilt wheelset than to build one but cannot find any prebuilt 7 speeders.
Thanks
re: Cracked a rim on my ride todayLC
Sep 1, 2003 11:00 AM
Did you measure across the rear dropouts? If it is 130mm you can go 9 speed, but if it is 126mm your stuck with 7 speed. Some 7 speed bikes built around the transition time were 130mm.
Not so easy to use a 9 sp hub in 7 sp modeKerry Irons
Sep 1, 2003 5:24 PM
You'd need a shorter axle, probably different axle spacers, and most likely a shorter cassette body. When was the last time you saw those things for sale in an LBS or catalog? And just how much do you think this will add to the cost of the prebuilt wheel, assuming you could find the right parts. You've only got one choice, and that is to replace the rim. Find the cheapest one you can, and then you can consider whether it's time to move on from this bike.
Just get a new rimbimini
Sep 2, 2003 7:44 AM
Replacing a rim is not a big deal. If you are handy it is something you can do yourself. Your LBS should be able to do this also for a reasonable amount of money. If the Hub is good this is your low cost answer.

You can also buy old 126mm space freewheel style rear wheels for next to nothing on ebay in good condition. (everyone wants 130mm cassettes)

To switch to 9 speed would require a whole new group. It would also require your rear stays to be spread to 130mm. The results may or maynot be great.

By the time your done you will have invested a lot in an old bike. If you really like the old bike that's one thing, but it may be time to look at a new bike or a new used bike.