K2 / Proflex Riders Group

General => Tech Forum => Topic started by: Colin on June 22, 2009, 07:07:33 am

Title: 3 Spoke SPIN Wheels - Truing/Bearings
Post by: Colin on June 22, 2009, 07:07:33 am

Anyone got any experience of truing 3 spoke carbon SPIN wheels?

I've got a slight wobble on my set and I'd love to cure it for a road trip to Paris this Autumn!

Col.

Title: Re: 3 Spoke SPIN Wheels - Truing
Post by: shovelon on June 22, 2009, 10:46:16 am

(http://lazylaurel.files.wordpress.com/2008/03/sledgehammer.jpg)

Title: Re: 3 Spoke SPIN Wheels - Truing
Post by: orange on June 22, 2009, 11:29:46 am

:D

Pretty much what I thought - there's not much you can do... but I may be wrong.

Title: Re: 3 Spoke SPIN Wheels - Truing
Post by: Willie_B on June 22, 2009, 12:12:37 pm

I can relate to the desire to fine tune things the above way. :'(

Title: Re: 3 Spoke SPIN Wheels - Truing/Bearings
Post by: Colin on June 25, 2009, 05:36:49 am

Funny, That's what the bike shop said,........... "Big Hammer"

Actually, looking a bit closer, it might be the front wheel bearing has a bit of play in it.

Anyone got any experience of maintaining/changing the wheel bearings on these?

Col.

Title: Re: 3 Spoke SPIN Wheels - Truing/Bearings
Post by: Lysander on June 25, 2009, 08:22:05 am

(http://lazylaurel.files.wordpress.com/2008/03/sledgehammer.jpg)
 ;D

Title: Re: 3 Spoke SPIN Wheels - Truing/Bearings
Post by: 4500_rider on June 26, 2009, 08:32:48 am

Werent the bearings on those wheels press-fit?  Decent bearing company might be able to help... ?

Update... found this... http://www.bocabearings.com/main1.aspx?p=showsearchforpage&bc=SK&type=K&cat=rccrossrefguide&pg=9&mfr=214 - seems to be replacement bearings for the spins.

Title: Re: 3 Spoke SPIN Wheels - Truing/Bearings
Post by: Colin on June 29, 2009, 04:53:35 am

Thanks, but they're SPIN wheels not SPINERGY ( I've got a set of Rev X ROKS as well!)

i.e. the 3 solid spoked ones.......

http://www.mtbr.com/cat/tires-and-wheels/wheelset/spin/wheels/PRD_353699_157crx.aspx (http://www.mtbr.com/cat/tires-and-wheels/wheelset/spin/wheels/PRD_353699_157crx.aspx)

(http://i176.photobucket.com/albums/w194/ChevyMuscle454ss/spin-wheels-2.jpg)

Any clues?

Col.

Title: Re: 3 Spoke SPIN Wheels - Truing/Bearings
Post by: orchid5683 on July 26, 2009, 01:31:36 pm

This is a very old school "rumored" way of truing mag wheels (from the U.S.), rumored for plastic/fiberglass but it may just work for carbon/composite as well, same principle...

Find a large enough, and very cold freezer...leave in until really really cold ;-)

Of course the scientific principle is that cold molecules condense to their smallest possible configuration, so in the case of a wheel (round object) they would theoretically pull themselves into the closest possible alignment. May want to check on extreme temperature effects on the material before you decide how cold to let it get.

my email is orchid5683@hotmail.com

I would love to hear if it works for you...hope it helps!

Elias

Title: Re: 3 Spoke SPIN Wheels - Truing/Bearings
Post by: orange on July 26, 2009, 02:14:44 pm

assuming it is of even density?

Title: Re: 3 Spoke SPIN Wheels - Truing/Bearings
Post by: purple gerbil on July 27, 2009, 02:45:21 am

Heard of the freezer trick when i was a kid..Apparently it worked on skyway mags (bmx)..

Never got to try it as i broke mine before they got the chance to buckle. >:(

Dont know if it will work with carbon!