pre 70 scramblers to look for

[firko]

l think the dt 1 is under rated,

Yeah they're under rated Dave but we have to be honest and admit that you have to to quite a bit of tweaking to get them race-able. From the factory they don't have a hope in hell of competing on a level playing field with THE pukka race bikes but that's OK though as building them is part of the fun anyway. Fitting a frame lowering kit, upgrading the suspension by fitting decent forks (Betor, Ceriani, Maico, CZ) or cartridge emulators (PD, Gold Valve) and the shocks of your choice, you're on your way. After that you can go all out like I did by changing the steering rake, lengthening the swingarm, fitting lighter wheels,modern spec pipe, port job better carburetor....and so on, or keeping it basic. It's all down to your commitment and/or how much you want to spend. Whatever way you go, I reckon a well set up DT1 looks the ticket. I'm old enough to remember around 10 or so of these on the line in any given race circa '70-71. Here's a sweet '71 DT1 GYT/MX

[pancho]

Paul, take the fabric off the trampoline behind your Mako and use it for a trailer tourno cover, use the steel tubing for bike stands or something and do it before any little kid gets on it. cheers pancho

[vandy010]

Not wanting to turn this thread into a Yamaha trailbike conversion thing but i'd agree with Firko in that the DT1 can be a good thing. easy to modify, easy to get parts and lighter to throw around than it's RT1 big brother.
i presently have a DT1 project bike on ebay for sale at the moment with the frame/swingarm mods Firko's mentioned already done.
to add to Shorelines comments, the BMCC pre~70 scene is steadily looking better too. it's a fun class for sure.
here's a pic of my Yammy RT1. she's a wild ride

[Freakshow]

I reckon they handle fine, really not much differant to the MX250 but more fun

Love mine, totally idiot proof ... 

[Marc.com]

you could do yourself a nice twin for pre 70. hondas little Rickman beater

[firko]

That's sure a fugly little thing Marc but it's got a certain cool factor I reckon. I dunno what frame it is but the engine fits into pre 65. I've got a 305 that briefly lived in my Cotton frame when I had the ''brilliant'' idea that it'd make a pre 65 contender. I eventually sobered up, put the frame's back in the shed and the engine back under the bench. Yetman made a very cool frame for the engine but they're rare and expensive.

[DR]

pre'70 is a little before 'my riding era' but it appeals to me simply because if you wanted to race a jap bike back then it was a converted traily and little else that is unless of course you had 1 of them thar TM250's with the twin straws or a Kawa F21M as pictured by E74

my pre'70..I really must ride it one day but at 5000lbs and me being the 100lb weakling I don't think it's going to be a lot of fun I should drop it down (further!) for flat track where the wheels don't have to leave safety of the ground

[Freakshow]

can you make this pre 70 ? like as in carry over model.........

[pancho]

Vandy your RT1  looks great. I found that fitting a 21'' front wheel was a great improvement on mine.cheers pancho.

[SAABCOMBI]

Here is a very nice BSA b44 Metisse pre 70 race bike

[Marc.com]

Here is a very nice BSA b44 Metisse pre 70 race bike

Yummy ..... I was waiting for B44 to be bought up as option. Make mine a methanol burning Cheney with titanium bodied rear shocks thanks 

[SAABCOMBI]

The engine is pre70 but the rest looks to be pre 78.

[Marc.com]

The engine is pre70 but the rest looks to be pre 78.

I guess the frame pre 75 mate, stamped in the frame and they were Eric Cheneys dying words.... "tell Marc  it is pre 75" .... anyway it is built for all British days and last time I looked it was all British.....

Shed art mate, best scrutineered with some mates and a Carona in hand. 

[steve234]

Has anybody ever set up or raced a triumph tiger cub 200? they can even run in pre 65.

I know, it's no methanol burnin' flame throwin dragster........but they look lightish for the time and for a weekend warrior like me probably heaps of fun???

[TM BILL]

Has anybody ever set up or raced a triumph tiger cub 200? they can even run in pre 65.

I know, it's no methanol burnin' flame throwin dragster........but they look lightish for the time and for a weekend warrior like me probably heaps of fun???

Couple of kids raced Tiger cubs when i was a junior , I think one was in a husky frame and the other possibly a Rickman Petite frame.
They went suprisingly well  against the 125 jappers and euros of the day