For those of you that haven't seen these already:



Motorcyclist magazine article from 1953. I believe Bud Hare's Dubble Trubble was the very first dual engine Triumph motorcycle. Kinda rough in this first build. Reversing the Triumph cylinder head has never proved worth doing unless it's for show or there is a supercharger connected to it. Still has Rosamond Dry Lake dust on it!
The next version is much cleaner. Both heads mounted in the right direction. Mustang gas tank & a new seat. Smiths tachometer. Triumph gearbox swapped for a Harley transmission. Avon Supreme rear tire.
What's up with three control levers? One's the hand shift! This article mentions the first ONE-TIMER that Rios built before the double. A 130 MPH, 10 second machine!
RACE-WINNER


"The float bowls were mounted remotely not to keep the fuel from 'frothing',.but so that you could adjust the float level to the carb. If you look closely at Rios' engines, you'll see that the outlet from the float bowl is a bit lower than the carb inlet ! This caused the motors to lean out just a bit on the top end, ( a poor-mans lean-out). didn't work out all that great for Rios, but it sure did for me ! Lean thru' the traps made "some kind of power" !


The second annual Lion's Drag Strip all motorcycle day hosting over 1000 motorcyclists. Looks light on the spectatorship but the display of lacquers, enamels, pearlescents, metalflake and chrome must have been amazing, with the smell of burning racing fuel, oil and tires filling the air. CAR GUYS GO HOME.



This is the type of info to research when doing a serious dragster restoration or period correct drag bike build. The AMA did not want anything to do with Motorcycle Drag Racing in the 50's & 60's so rules varied from strip to strip around the country. This AHRA booklet is a neat little peice of the puzzle and probably close to what most strips were doing. I do not know if the NHRA had any Motorcycle Drag Racing Rules at this time or not. The AMDRA (American Motorcycle Drag Racing Association) was the first serious motorcycle drag racing sanctioning body and was founded in 1969 or '70. If anyone has any old literature on motorcycle drag racing rules please email: kustomhut13@yahoo.com
Picture perfect early 1960's Drag Scene
The photos have made their rounds about the web, but here is the backround info from a 1966 issue of Cycle World. A early custom made big bore cyilinder block and some very trick engine building making for a 10 second machine!
Need to stretch those legs! New tube tanks and blue frame.
Listed on ebay HERE. This thing is pretty amazing, not just the HISTORY, but the modifications to the frame, brakes, and suspension are really impressive as well. The front frame has been modified to put the engine as close to the front wheel as possible, and the rear section has been heavily modified as well. The plastic rear fender would have been a 1970's addition, the bike probably had some type of alloy blade when it was winning the early 1960's hill climb's.
I just read some jj squabbling recently about unit 500 heads being a close fit to pre-unit cylinders and presto, here's the real thing. I've never seen or heard of this conversion before. It's running iron head type pushrod tubes. Benefits? Anyone know anything about this conversion??? This listing says the engine is a 80 inch. Shows what they know. Or am I missing something?
Mechanical disc brake sprotor from the early days! Not sure how it shifts with the brake set up mounted right on the gearbox shifting shaft. Study this BEAST closely and you can find all kinds of neat mods.
This ad from 1966 is the earliest ad I've seen for the big ol' 800cc kits. With big cams and carbs they blew HD Sportsters right off the road. Anyone that has big bore cylinders that they don't want to mess with and would like to sell or trade let me know: kustomhut13@yahoo.com
Ahh, the joys of Brit bike rebuilds. You never know what your going to find in there. Not too long ago I took apart a pre-unit engine for a friend of mine that was full of vintage speed components, and they were all in perfect condition. I rarely find anything exciting inside the engines that are mine and most of the time they are close to what Dave found here. Well the mystery is uncovered, she was all show and no go. That firms up Dave's decision to restore it in my book and I'm looking forward to seeing this old show go'er get prettied up and finally finished right after all those years.
One of the interesting bits of information that I have found possibly relating to the TR5 I have is this mention of a 1957 TR5/A Sports model listed in this Cycle magazine feature on the Triumph line for 1957. I couldn't find any more information on this model so I coughed up the dough for the "Triumph Trophy Bible" by Harry Woolridge after being told it was the definitive resource. Well it is a helluva good Triumph book with lots of really cool ISDT bikes that I had not known about and a lot of new information including some more info on the '56 TR5R. It turns out that there were some TR5R's made in 1957 as well with varying specifications and the book lines those out pretty well. Unfortunately there is no information on the various /A and /B models described in the Cycle magazine article. As far as I know /A and /B models were something that was done by TriCor and JoMo as models were changed slightly for customers as well as the competition machines mentioned. So I don't think there are any Triumph factory records for these early /A and /B bikes and whatever info there might be would be in the States? If there are any records of the engine numbers of the TR5/A Sports model I would really like to see them. Anyone that has even a scrap of info on this subject or any parts and literature for sale or trade please email me: kustomhut13@yahoo.com
From the "Rebel Rousers" filmed in 1967. One of the worst of the Outlaw Biker films (and I love old biker flicks), ever made, but some neat bikes and really good actors seemingly ad libbing the whole movie. This lobby photo was issued reversed so I have flipped it here.
As displayed in the 1966 Cycle World Motorcycle Show. Paint and fabrication work by Gary Littlejohn. I'd love to find a custom oil tank for the swingarm frames like this one. This is before Gary Littlejohn started making the Coffin gas tanks. Gary was both a painter and metal worker as well as movie stuntman and supplier of many custom choppers for Hollywood "B" movies. In the "Rebel Rousers" the seat and paint had already been changed. I believe this same bike was later used in other biker movies including "Satan's Sadists" from 1969, but with extended forks at that time.




Stolen awhile back from the top notch MC Art Webzine 



Ultimate Speed & Power, IF you can keep those Amal GP's set up right. Plan on tinkering at every stop and don't open that throttle too fast! Not the most sensible street machine, but the cool factor of all the specialty equipment makes up for it, even if the more reliable and equal performing Lightning sounds like the better way to go. A factory correct restoration of one of these '66 models is probably going to live most its life in the museums, private collections and shows these days but that's all right.



Gonna round out the week with BSA stuff and then next week return to the normal highly biased Triumph content. Ever notice how abundant BSA A65/A50 stuff is? Usually some at every swap meet and usually pretty cheap. Especially if you wait till the end of the day with your low ball offers. I sold a nearly complete A65 engine once at the end of the day to some SOB swap meet cheap skate for $50 because I didn't want to carry it out. I've got a litter of 1966 Lightning engines crowding the floor of one of my work benches now. Besides being cheap they're damn good bikes. Just as good as any unit construction Triumph. Definitely recommended for the poor boy builders. Don't really like the way the weld on hardtails look on them though (I'm guilty of building one of those before, myself). It would be cool to see some guys build custom A65 swingarm frame chops. Oh yeah, the Lightning article. Bob Greene and a new 1965 Lightning out at El Mirage Dry Lake. Good stuff.
Any of you guys have tips on how to get holes accurately marked for drilling on circular parts such as brake drums like this so that they end up evenly spaced? I love lightening holes when done right, problem was most of the time when it was done it was a haphazard job that looks like crap and makes the part dangerous. Is their a mathematical equation to it, or simple method???