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General Category >> Rubber Side Down! >> Does a 1/2 oz unbalance need a weight?
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Message started by philthymike on 09/28/19 at 08:32:35

Title: Does a 1/2 oz unbalance need a weight?
Post by philthymike on 09/28/19 at 08:32:35

My rear wheel is not balanced by only a half ounce. Is a weight even necessary?

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by twhitus on 09/28/19 at 09:18:36

if this is the front tire at 60mph it will spin roughly 800rpm so that 1/2 oz will add up to some vibration. if my math serves me it will come out to about 7lbs of force thats gonna be noticed :)

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by Gary_in_NJ on 09/28/19 at 09:19:49

You tell me. How does the bike feel at 60mph?

Me? I’d add the weight and not waste time whether I should or not.

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by philthymike on 09/28/19 at 10:24:14

I haven't put it on the bike yet. I'm asking because once the wheel has been coupled to the pulley hub and pulley and the potential change in balance from those is half an ounce worth the worry. I just had the cast aluminum GS wheel powder coated too so I don't care to mess up part of the coating for no real reason.

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by Gary_in_NJ on 09/28/19 at 10:37:19

Mark the rim with tape as to where the weight should go. Take it out for a ride. If you note vibration then place the weight where you marked the rim with tape.

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by philthymike on 09/28/19 at 11:09:26

That's gonna have to wait. The bike's all apart right now.

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by Ruttly on 09/28/19 at 13:34:59

I always balance the wheels , thumpers have enough vibration without the wheels shaking the hell out of everything else !

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by justin_o_guy2 on 09/28/19 at 13:44:11

Put the axle in with the pulley.
Set it up however you must, hanging, on a stand, give it an easy spin, see where it stops. Do it until you see a pattern. Weight appropriately or use balance beads.

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by ohiomoto on 09/28/19 at 16:55:16

Mark where the spot that might need the weight, ride it and then put it on if you need it. Personally, I doubt you'll notice it on the rear wheel.

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by badwolf on 09/28/19 at 17:58:22

Stainless steel balancing beads, 1.5 oz in the front, 2.5 oz in the back. Throw those weights away. From 25 or so up your wheels will run smooth as glass. And they are always correcting, if you loose a chunk of rubber or skid a flat spot, they don't care.

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by Yoshi on 09/28/19 at 22:15:25

I mount my own tires, align the dot to the stem and they're usually good.
Not guarantee but most rims rebalace fine, don't take off the old weight

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by philthymike on 09/29/19 at 07:43:29

4443424446445F442B0 wrote:

Mark where the spot that might need the weight, ride it and then put it on if you need it. Personally, I doubt you'll notice it on the rear wheel.

I marked the spot and have an appropriate stick on weight. I'm thinking it won't be noticeable. Once the bikes back on the road I can add the weight otherwise

Title: Re: Does a 1/2 oz unbalance need a weight?
Post by philthymike on 09/29/19 at 07:45:30

0A1B0A333F313B282931335A0 wrote:

I mount my own tires, align the dot to the stem and they're usually good.
Not guarantee but most rims rebalace fine, don't take off the old weight

The old weight had to come off for powder coating.