Wednesday, August 15, 2012
Tuesday, August 14, 2012
Pre-Unit Triple Clamps
I have a set of triple clamps off a '56 Pre-Unit. Starting in 1960 with the release of the Duplex frame ('60-'62) the built-in rake (about 3 degrees) was removed from the Pre-Unit yokes. I spent a little time trying to figure out the visual differences between the early and post-Duplex yokes. The bottom is easy, assuming they haven't been cut up. The early lower yokes have the prominently protruding "wing" fork stops.
Triumph appears to have used three different part numbers for these bottom yokes 1950-1959 and the differences are very subtle. 1950-1954 had 5/16" pinch bolt holes, '55-'57 3/8" pinch bolts and the 1958-1959 models have a slot in the steering stem for a fork lock on the right side of the steering head.
The post-Duplex lower has noticeably smaller fork stops. You'll also notice no forward "lean" in the stem if you set the clamp on a flat surface like a table.
The top clamp seems a little more mysterious. I noticed Paul from Show and Go had pondered this same problem at one point. In '56 part number according to '56 Part Book 97-0663A (H663A) was used. See an example of 97-0663A pictured blow:
These photos match visually what I have from an original '56 bike.
The 1961 Parts Book lists 97-1108 (H1108). See an example below. I assume the rake is different between the two parts but visually they seem to look identical. I expected there to be an obvious casting difference as described in the Show and Go post but I'm now starting to suspect it's not quite so clear cut.
If you are aware of any other tell-tale identifiers I love your advice. Incidentally I'm interested in locating the '61 pieces (97-1108 & 97-1283).
Triumph appears to have used three different part numbers for these bottom yokes 1950-1959 and the differences are very subtle. 1950-1954 had 5/16" pinch bolt holes, '55-'57 3/8" pinch bolts and the 1958-1959 models have a slot in the steering stem for a fork lock on the right side of the steering head.
The post-Duplex lower has noticeably smaller fork stops. You'll also notice no forward "lean" in the stem if you set the clamp on a flat surface like a table.
The top clamp seems a little more mysterious. I noticed Paul from Show and Go had pondered this same problem at one point. In '56 part number according to '56 Part Book 97-0663A (H663A) was used. See an example of 97-0663A pictured blow:
These photos match visually what I have from an original '56 bike.
The 1961 Parts Book lists 97-1108 (H1108). See an example below. I assume the rake is different between the two parts but visually they seem to look identical. I expected there to be an obvious casting difference as described in the Show and Go post but I'm now starting to suspect it's not quite so clear cut.
If you are aware of any other tell-tale identifiers I love your advice. Incidentally I'm interested in locating the '61 pieces (97-1108 & 97-1283).
Monday, August 13, 2012
Vincent Black Shadow
That was way too much fun. I'm not gonna forget it anytime soon... Yes, riding a Black Shadow is cooler than you think it is. They are actually worth the outrageous asking price.
Sunday, August 12, 2012
C@D Report
Today may have been the best "old bike" showing I ever recall. Certainly the best old Brit bike showing ever. I was too busy causing trouble to take very many pictures.
An undisclosed motorcycle benefactor talked me into riding his Vincent Black Shadow, I suspect more than a few of the readers of this blog will still work out who it was. It's absolutely the most amazing motorcycle I've ever ridden. It was the most cautiously I've ever ridden a bike too.
I have a hard and fast rule that I never ride a motorcycle I couldn't afford to replace. I broke that rule twice today. I rode PJ's (mine actually, he just has realized it yet) 1948 Norton International after the Vincent. PJ and I actually ended up"racing" the Norton and my Tiger. I think that Norton might run my Triumph down in a straight line. The straight pipe on that Norton is LOUD.
An undisclosed motorcycle benefactor talked me into riding his Vincent Black Shadow, I suspect more than a few of the readers of this blog will still work out who it was. It's absolutely the most amazing motorcycle I've ever ridden. It was the most cautiously I've ever ridden a bike too.
I have a hard and fast rule that I never ride a motorcycle I couldn't afford to replace. I broke that rule twice today. I rode PJ's (mine actually, he just has realized it yet) 1948 Norton International after the Vincent. PJ and I actually ended up"racing" the Norton and my Tiger. I think that Norton might run my Triumph down in a straight line. The straight pipe on that Norton is LOUD.
Saturday, August 11, 2012
Speedway Park
I've run into an interesting guy named Eddie at Cars & Coffee a couple of times now. His Dad owned an Albuquerque motorcycle/scooter dealership (Zundapp, Vespa, etc.) and an Albuquerque dirt track in the late 40's. Eddie did lots of motorcycle racing in the 50's (road racing, flat track, whatever). He confirmed for certain that Simonson was the Triumph dealer in '51, he raced for Simonson for a while. We got to talking about some of the pictures Eddie has and he mentioned this archive online. I love some of Speedway Park stuff. It will take a week to go through it all.
Speedway Park pits, 1948
Jalopy Coupe 1950
Speedway Park pits 1950
Speedway Park Sign
Albuquerque Dealer.
Speedway Park pits, 1948
Jalopy Coupe 1950
Speedway Park pits 1950
Speedway Park Sign
Albuquerque Dealer.
Friday, August 10, 2012
Ran When Parked
Resembles my '61 T110 quite a bit.
56'T110 650 Pre unit Tiger -Tacoma Wa. $4700
New top end, lower end has low "original" miles.
Runs great, everything works, second owner.
It's about 80% original.Has 1966 triumph front forks & rear wheel.
56'T110 650 Pre unit Tiger -Tacoma Wa. $4700
New top end, lower end has low "original" miles.
Runs great, everything works, second owner.
It's about 80% original.Has 1966 triumph front forks & rear wheel.
Ran When Parked
Hmm. I guess it's Indian day. Who knows... one of you might hit the lottery on the way home today. 1939 Indian Four.
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