Hi John, Troubleshooting:
1) Are you sure that the wheel is true, both radial and lateral? (radial = up and down, lateral = side to side) 2) Is the dish ok? (is the rim centred about the hub) 3) Does the tire have wear spots? 4) Is there too much (or too little) contact between the roller and the tire? When I'm on the trainer with one of my almost-true rear wheels, I really notice the vibration. On the road with this wheel, nothing! In the wheel building stand, the radial true is out by a few mm (dips and peaks as the wheel goes around). To answer your first question, yes there are balancing techniques (Torelli's (really Ambrosio's) (http://www.torelli.com/parts/wheels.html) top road rims have a little weight around the valve stem to compensate for the slight loss of metal in the hole). But really, the valve makes up for most of the weight lost in the rim hole. A bike wheel is "balanced" by the addition and removal of spoke tension; a car wheel is balanced by the addition and removal of weights. Cheers Peter T. skiza wrote: > > For some time now, I have been biking using a road bike (Specialized Epic) > both outdoors and indoors. When indoors, I clamp my bike to a mag-trainer > and just pedal for 30-40 minutes ... it's quite a workout. > > When I bike on the mag-trainer there is a very mild numbing vibration. I > thought initially that it was because I had removed the reflectors on the > wheels ... so I put them back on locating them opposite the valve, but the > vibration is still there. > > Can anyone suggest a possible solution? . Is there such thing as wheel > balancing for bicycles? > > Thanks ... John -- ------------------------------------------------------------------------------ Peter Tregunno, P.Eng. Edge Networks Designer - Alcatel email: [EMAIL PROTECTED] voice: 613 784 5228 "Ride your bike like ya stole it." ------------------------------------------------------------------------------ ------------------------------------------------- For list help, please send email to [EMAIL PROTECTED] Club Office: [EMAIL PROTECTED] (613) 230-1064 Website: [EMAIL PROTECTED] http://www.cyberus.ca/~obcweb Newsletter: [EMAIL PROTECTED] ------------------------------------------------- ==^================================================================ This email was sent to: [email protected] EASY UNSUBSCRIBE click here: http://topica.com/u/?aVxiDo.a2i8p1 Or send an email to: [EMAIL PROTECTED] T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^================================================================
