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Sr Litage frame needs down tube shifter boss help

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Sr Litage frame needs down tube shifter boss help

Old 12-28-14, 11:30 AM
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Lightfoot21
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Sr Litage frame needs down tube shifter boss help

I have a vintage SR frame that is missing one shifter boss. I can tell that the small rivets and bonding failed at some time in the past. The frame is comparable to the vitus 979 (nicer in my opinion) which is why I bought it even though it is way too big. Can I get the needed part or am I destined to just use clamp on bosses? I plan to sell the frame whether I fix it or not but was wondering if the repair might be easier than I'm thinking. Any suggestions or thoughts would be appreciated.
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Old 12-28-14, 03:35 PM
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JohnDThompson 
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You may be able to fabricate something for this; e.g. a disk of stainless steel, curved to fit flush against the down tube and onto which a standard shift lever boss is brazed. Some high strength epoxy under the disk, and a couple rivets through the existing holes to hold it in place, and Bob's yer uncle.
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Old 12-28-14, 09:30 PM
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Andrew R Stewart 
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This frame isn't exactly a popular one so don't expect much support. The simple but not easy solution is to fab a clamp around lever boss. Good luck. Andy.
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Old 12-28-14, 09:30 PM
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I should have also mentioned full length housing and bar mounted shifters. Andy.
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Old 12-28-14, 09:45 PM
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thanks Andy - I'll look for a donor frame to get the part, I guess
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Old 12-29-14, 03:58 PM
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Originally it was a die cast aluminum Piece , an Investment pattern of wax would be how to make a single one or Pair, Now

Community college have Jewelry Making classes ? theres all the tools you'd Need.


There are adhesive stick on guides that use a Zip Tie to hold down the Housing (or the Hydraulic Hose Run)

JDTs suggestion is a Perfect Solution , if you wish to fit Down Tube shifters. A silver solder will join the stainless Steel Disc curved to match the Tube ,

and the Common steel of the typical Shifter braze on (it will be Unseen once the Shift lever is assembled , and Only the stainless disc will be seen) .

Epoxy and pop-rivets will make it very solid.... and will enhance the resale Value ..

Last edited by fietsbob; 12-29-14 at 04:14 PM.
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Old 01-05-15, 01:53 PM
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Originally Posted by fietsbob View Post
Originally it was a die cast aluminum Piece , an Investment pattern of wax would be how to make a single one or Pair, Now

Community college have Jewelry Making classes ? theres all the tools you'd Need.


There are adhesive stick on guides that use a Zip Tie to hold down the Housing (or the Hydraulic Hose Run)

JDTs suggestion is a Perfect Solution , if you wish to fit Down Tube shifters. A silver solder will join the stainless Steel Disc curved to match the Tube ,

and the Common steel of the typical Shifter braze on (it will be Unseen once the Shift lever is assembled , and Only the stainless disc will be seen) .

Epoxy and pop-rivets will make it very solid.... and will enhance the resale Value ..

Thanks, I may try to fabricate something after all.
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Old 01-05-15, 02:05 PM
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if I were doing that, I would make an adapter for a standard braze-on post. Since it will be glued, the fit doesn't have to be that good.

The round parts of this kit are what I was thinking about: NOVA LEVER BOSS KIT FOR AL FRAME :: SMALL PARTS :: BRAZON/SMALL PARTS :: Nova Cycles Supply Inc.
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