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what do you use for handlebar shims

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what do you use for handlebar shims

Old 06-15-21, 09:01 AM
  #1  
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what do you use for handlebar shims

going to use 25.4 bars with a 25.8 clamp on my stem.. what do folks use for a shim? a strip cut from a beer can? (which of course means that i'm going to get the right beer for riding karma..) shim strip material that might be available somewhere?
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Old 06-15-21, 09:14 AM
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Originally Posted by cocoabeachcrab View Post
going to use 25.4 bars with a 25.8 clamp on my stem.. what do folks use for a shim? a strip cut from a beer can? (which of course means that i'm going to get the right beer for riding karma..) shim strip material that might be available somewhere?

Not for bikes but I once bought (and still have most of) an assortment pack of brass shim stock from the local auto-parts store; I see Amazon sells something similar, using a search for "brass shim stock". That said, aluminum is lighter than brass I presume once shimming, one loses the effectiveness of any knurling on the center of the bars, to a degree.
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Old 06-15-21, 09:16 AM
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Whatever you use, just remember to double the thickness when doing calculations, eg a 1mm shim will add 2mm of thickness, as you're wrapping the shim around the bar. Might be elementary engineering for some, yet it is a helpful reminder.
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Old 06-15-21, 09:21 AM
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Originally Posted by tiger1964 View Post
Not for bikes but I once bought (and still have most of) an assortment pack of brass shim stock from the local auto-parts store; I see Amazon sells something similar, using a search for "brass shim stock". That said, aluminum is lighter than brass I presume once shimming, one loses the effectiveness of any knurling on the center of the bars, to a degree.
i'll be installing a wooden slightly curved flat bar, so not too worried about the bar turning much in the clamp, and i'll go research the shim material listings. thanks!
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Old 06-15-21, 09:25 AM
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beer cans are win win; great for shimming but first you have to drink the beer.
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Old 06-15-21, 09:26 AM
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I messed around with beer cans and thin stock sheet metal but it can be difficult to get the exact thickness you need. For the correct fit, go here: https://problemsolversbike.com/produ...p_shims_-_8466
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Old 06-15-21, 09:31 AM
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Originally Posted by davester View Post
I messed around with beer cans and thin stock sheet metal but it can be difficult to get the exact thickness you need. For the correct fit, go here: https://problemsolversbike.com/produ...p_shims_-_8466
and problem solved! thanks! they even have it in stock at my LBS!
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Old 06-15-21, 09:49 AM
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Originally Posted by bikemig View Post
beer cans are win win; great for shimming but first you have to drink the beer.
... which brings up another question... what brands of beer would be good candidates for shims? and i don't really care about the shim part, but i'm seeing a new reason to drink some some beer that begs to be exploited!
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Old 06-15-21, 10:26 AM
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Excellent shim material.


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Old 06-15-21, 10:28 AM
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The above is fine, but in a pinch have used Classic Coke can aluminum
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Old 06-15-21, 10:30 AM
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I tried that but couldn't get the clamp tight enough. this was using a 26 in a 36.4 clamp. Just tightening it down was enough.
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Old 06-15-21, 10:31 AM
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Originally Posted by cocoabeachcrab View Post
i'll be installing a wooden slightly curved flat bar...
Wait what?
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Old 06-15-21, 10:45 AM
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I can't drink anymore, so I have to substitute a fizzy water can.
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Old 06-15-21, 11:05 AM
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Originally Posted by bOsscO View Post
Wait what?
this is headed for my mystery frame italian sportivo ish build....
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Old 06-15-21, 11:10 AM
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I...I had no idea wooden components were a thing.
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Old 06-15-21, 11:44 AM
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Originally Posted by bOsscO View Post
I...I had no idea wooden components were a thing.
my entire head is made of wood!
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Old 06-15-21, 12:20 PM
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Originally Posted by bOsscO View Post
I...I had no idea wooden components were a thing.
Renovo made wooden frames for a few years here in PDX, lots of others doing it as well.
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Old 06-15-21, 02:16 PM
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Ive used 12 mil (0.3mm) stainless steel flat stock 1 wide for shimming 26.0 clamp to 25.4 bars. At the moment, both bikes have stems with 25.4 mm clamps so no shins are needed.

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Old 06-15-21, 02:20 PM
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Pinocchio was made of wood, and he became a real boy.
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Old 06-15-21, 02:30 PM
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Originally Posted by Phil_gretz View Post
Pinocchio was made of wood, and he became a real boy.
So, if a bicycle frame is made of wood and it becomes a real frame, does that mean it turns to steel?
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Old 06-15-21, 03:25 PM
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Originally Posted by merziac View Post
Renovo made wooden frames for a few years here in PDX, lots of others doing it as well.
Wood frames, especially those made of bamboo, I've seen but not wood components.
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Old 06-15-21, 03:40 PM
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Originally Posted by T-Mar View Post
So, if a bicycle frame is made of wood and it becomes a real frame, does that mean it turns to steel?
yes. its called the Pinocchio principle.
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Old 06-15-21, 03:58 PM
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If you use any drink can heat the shim to remove the plastic inner liner.
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Old 06-15-21, 04:24 PM
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Originally Posted by ollo_ollo View Post
The above is fine, but in a pinch have used Classic Coke can aluminum
It was good enough for Greg. Caused quite a stir at the time.
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Old 06-15-21, 05:15 PM
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