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P Clamp Rubber Mount #126014
10/12/07 1:16 am
10/12/07 1:16 am
Joined: Jul 2007
Posts: 45
Oklahoma City OK
Jake Hartley Offline OP
BritBike Forum member
Jake Hartley  Offline OP
BritBike Forum member
Joined: Jul 2007
Posts: 45
Oklahoma City OK
Where can I find home market or the sidecar version of the P clamp mount? I have never cared for the US rubbery ones....


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Re: P Clamp Rubber Mount #126015
10/12/07 1:45 am
10/12/07 1:45 am
Joined: Mar 2006
Posts: 135
Florida
tech 108 Offline
BritBike Forum
tech 108  Offline
BritBike Forum
Joined: Mar 2006
Posts: 135
Florida
Hello from Tech 108. If you have the part number, you can get them from Mapcycle.

Tech 108
Venice, Florida

Re: P Clamp Rubber Mount #126016
10/12/07 5:49 am
10/12/07 5:49 am
Joined: Jun 2002
Posts: 9,689
Scotland
S
Stuart Offline
BritBike Forum member
Stuart  Offline
BritBike Forum member
S
Joined: Jun 2002
Posts: 9,689
Scotland
Hi,

Quote:
Originally posted by Jake Hartley:
Where can I find home market or the sidecar version of the P clamp mount? I have never cared for the US rubbery ones....
confused

Assuming you're talking about the two Metalastik bushes that fit into holes in the top yoke and into which the handlebar 'P' clamps fit, afaik there are neither 'home market' nor 'sidecar' versions - apart from anything else, this vibration isolation arrangement appeared long after sidecars were normally attached to bikes.

Firstly, there is a problem with current versions of the Metalastik bushes - they allow considerably more movement than the originals.

Afaik, depending on the year of the forks involved, there are up to two alternatives. If the forks are pre-'71, there are usually a different top yokes that have two 'half-clamps' as part of the casting. If this isn't suitable, or the forks are '71-on, the only alternative is to substitute solid bushes for the Metalastik ones, which was done by the factory when a handlebar-mounted windscreen was fitted.

Hth.

Regards,

Re: P Clamp Rubber Mount #126017
10/12/07 12:52 pm
10/12/07 12:52 pm
Joined: Mar 2005
Posts: 10,084
Boston, Massachusetts
J
John Healy Offline

BritBike Forum member
John Healy  Offline

BritBike Forum member
J
Joined: Mar 2005
Posts: 10,084
Boston, Massachusetts
97-1616 which requires removal of the metalastic bushes - used, as Stuart mentioned, when a handle bar fairing is mounted. Also Barnett Tool & Engineering sell a kit of 4 pieces that go over the metalastic bushes, part # RA-5, and solid mount the bars.

It is important to remember that the "P" clamp mounting shaft has a radius or fillet where the shaft is attached to the clamp. What ever you use you MUST supply a relief or chamfer for this to sit in. Allowing the sharp edge of a spacer's hole to cut into the fillet can cause catastrophic failure of the "P" clamp shaft.


Re: P Clamp Rubber Mount #126018
10/12/07 1:57 pm
10/12/07 1:57 pm
Joined: Jul 2007
Posts: 45
Oklahoma City OK
Jake Hartley Offline OP
BritBike Forum member
Jake Hartley  Offline OP
BritBike Forum member
Joined: Jul 2007
Posts: 45
Oklahoma City OK
Makes sense, Stuart and John. Was looking at my service manual when I posted and it listed 3 specific mount types, two were, it appears, a series of rubber spacers and bevel washers that the P clamp fit into (one was referred to as "US" and the other I think "home market") It also refered to a "sidecar" verison that did not have the rubber spacers and bevel washers.

All I really wanted to know is how to more solidly mount my bars to the head.

Thanks, I will try the Barnett kit.


"He who makes a beast of himself gets rid of the pain of being a man"

Moderated by  John Healy 


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