Mountain Biking - To true or not to true?
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05-03-02, 06:42 PM
I have a small story about my ride today!!
I am on a path in some of the woods that i ride. I am going 15-16 mph and then out of nowhere is a pond!!!! so i slam on the brakes (yes i do have on my new brakes on so im not used to them :( , if i didnt me and my bike would be in the water! so i notice that my rear end flys up really fast so i let go of the front sightly.
The bike starts to fall to the side and i bail off the bike. the bike slides right into this tree to my side and i notice when i pull it up and rear tire is bent in a place about 1cm. so i get on it and ride home with out a rear brake because i had to disconnect it so it wouldn't rub the whole time.
So now i am here once again with a newbe question!!
I was just at my lbs last week for a tire true and some other stuff to get fix. No i am faced with the fact that i need to go back and get it done all over again. So this leads me to 2 questions :
1) should my rim bend like this, or is a very cheap/weak rim? (don't really have money to get new ones :( spent all my last money on the brakes)
2) Is there any way that i can true the tire myself athome (and still have it as goos as my lbs can do it)? how much is the average truing?
thank you for your help!
Sounds like a nasty spill. Yes, it is normal for even high-quality rims to bend a bit under such adverse conditions. Although a cm is ALOT of lateral play, you may be able to salvage the rim. If you have not worked much with wheels, show your rim to a good local bike mechanic or a trusted, mechanically-inclined fellow cyclist, to determine whether the rim ought to be replaced. (The more abrupt the bend is, the more likely you are to have damaged the rim irreparably. One can often tune out a lazy, gradual warp or bend by judiciously adjusting the tensions/lengths of various spokes.)
if you seem to be needing to true your wheels it might be worth getting a wheel building kit that you can use to true your wheels, might be worth learning to do, maybe. then again its not really expensive to get the lbs to do it for you, but if you have some spare time and a little cash .....
this one helps adjust trueness/ roundness to 0.2mm :rolleyes:
And check out the Minoura Wheel Building kits, there is a cheaper one and a more expensive one.
Hope this helps :beer:
05-04-02, 12:46 PM
Ok well i go to my lbs andt tell me that they will charge me 35 for the job and that the rim will not be fully streight. what do you think that i should do.
should i go just for a new rim or what?? i mean the rim that they will be fixing is stock rim that i'd say didn't cost the 35 that they are now going to charge me.
should i just save my money and get a nice set of rims that will be much better or should i pay the 35 and (seemingly) be back there next week?
Here is a rim im looking at: (weight is not to much of a problem sence i am ony 130 ibs and would rather not have a light weak rim then a heaver rim that will not need to much work done on it.)
2002 Sun Rhyno Lite Rim 32 hole Rim
Price $30 on pricepoint
Price point also has a special:
2002 Shimano LX Wheelset with Sun Rhyno Lite Rims
Includes Front and Rear wheels, with skewers.Straight guage spokes,brass nipples.8 or 9 speed compatible.
05-04-02, 12:48 PM
OK well i went to the LBS and just sayed F it and now on tuesday i will get my rear tire back and it will have a nice new 2002 Mavic 517 Rim on it. It came out to be $78 they are going to fix the rim that i have now to the best that they can do and i will have that as a spare. so now i shouldn;t have to many problems with rims.
Thank you for your help
05-04-02, 05:36 PM
Unless you have a factory support team with unlimitted spares, maybe you should moderate your riding style. Ponds dont just come out of nowhere. if you are riding a new trail, you should explore it before speeding along.
Racers ride along cleared circuits and often inspect the course before the race.
In an emergency stop, you can reduce rear-end rise by shifting your weight right back along the saddle. Although crashing is hard to avoid altogether when doing extreme riding, it should be a point of pride to stay on the bike.
You should be able to true the rim fairly well without a truing stand. These are useful if you build up a lot of wheels or need to re-true regularly.
05-04-02, 11:57 PM
Found a guy in my area that has a true stand. Most of the time i can stay with the bike, just this time i was getting used to my new brakes and lets just say that they are a lot better than the last ones that were on the bike before. (now that i think about it, i should maybe have been a bit more carefull.)
All i know is that this is one of those expensive leasons in life
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