Author Topic: OT - 2-stroke vintage race bikes? (Read 3745 times)

.RJ · « **on:** July 05, 2007, 09:45:45 AM »

This guy was at the track last weekend - its a 125cc 2-stroke single, I think from the 60's - it sounded like it ran pretty damn strong and certainly looked fantastic. He packed up and left before I could make it over to talk to him more about it. Does anyone know anything more about these? I havent been able to find much information at all....

ohiocaferacer · « **Reply #1 on:** July 05, 2007, 09:54:49 AM »

Looks like one of the old Yamaha TD road racers.

I've run with them in AHRMA 200gp and they are fast.

Greg

.RJ · « **Reply #2 on:** July 05, 2007, 09:56:27 AM »

I thought it was a Honda.... at least he had Honda stickers all over his toolbox.

bwaller · « **Reply #3 on:** July 05, 2007, 10:18:11 AM »

It could be a TD that he's thrown a disc at or could it be an RS125 Honda?? Is so that would be a little later in the seventies? Been a while.

Hondell · « **Reply #4 on:** July 05, 2007, 11:12:33 AM »

It's a Honda 2 stroke--- Yes a HONDA. I raced TA 125 Yamahas in the 70's, TD 250's, TR2b 350 Yamahas and thats a Honda.

Rick

.RJ · « **Reply #5 on:** July 05, 2007, 11:19:38 AM »

Quote from: Hondell on July 05, 2007, 11:12:33 AM

thats a Honda.

Any idea what model, year, etc or where I can find out some more about them?

After seeing it run around the track I gotta have one

Well after my 750 is finished...

Hondell · « **Reply #6 on:** July 05, 2007, 11:48:49 AM »

I think it's a 1977-78 Mt 125R . fairly rare ( about 200 into the US every year)

Rick

Sam Green Racing · « **Reply #7 on:** July 05, 2007, 12:47:06 PM »

Quote from: Hondell on July 05, 2007, 11:48:49 AM

I think it's a 1977-78 Mt 125R . fairly rare ( about 200 into the US every year)

Rick

Honda MT125r, First built by HRSC in 1973. Air cooled single, 123.1cc, bore and stroke 56x50, 25bhp @ 10,500rpm, 6 speed gearbox.
Both wheels 2.50x18, tele forks and tube frame, brakes front disc, rear drum, dry weight 154lbs.

Sam.

.RJ · « **Reply #8 on:** July 05, 2007, 01:18:43 PM »

Excellent - thank you

Now to find one...

dusterdude · « **Reply #9 on:** July 05, 2007, 01:19:55 PM »

ooooh aint sam chock full of all sorts of usefull info.

Sam Green Racing · « **Reply #10 on:** July 05, 2007, 01:28:07 PM »

Quote from: dusterdude on July 05, 2007, 01:19:55 PM

ooooh aint sam chock full of all sorts of usefull info.

A mind of useless information

Sam Green Racing · « **Reply #11 on:** July 05, 2007, 01:31:48 PM »

Quote from: .RJ on July 05, 2007, 01:18:43 PM

Excellent - thank you

Now to find one...

I had one about 12 years ago but it had a Yamaha motor in it, found it wanting to much and got rid.
I should have kept it as they are fetching silly money now, even for spares.
A guy I know in Yorkshire has dozens of them, I think he is trying to capture the market.

Sam.

malcolmgb · « **Reply #12 on:** July 05, 2007, 02:01:20 PM »

what Yamaha engine did it have in Sam?

Sam Green Racing · « **Reply #13 on:** July 05, 2007, 02:39:01 PM »

It was just an air cooled 125 road bike engine, not sure what model, did they make a 125 RD ?

Sam.

Hondell · « **Reply #14 on:** July 05, 2007, 02:44:04 PM »

It could have been a TA 125 Engine if it was a twin. If a single probably a Yz 125.

Rick

turboguzzi · « **Reply #15 on:** July 05, 2007, 02:55:23 PM »

have an old cycle magazine issue with a story on these MT's. It was simply a cheap ticket into racing. Basically the engine was the 125's motocrosser unit slotted in a light road racing frame. level of other components wasnt that high, forks and front disc where from current honda street models but the idea was to produce a budget racer.

TG

Sam Green Racing · « **Reply #16 on:** July 05, 2007, 03:28:59 PM »

Just found a nice pic of a restored 77 model, still air cooled.

http://www.classichondarestoration.com/MT125R.php

Sam.

bwaller · « **Reply #17 on:** July 05, 2007, 03:43:27 PM »

That's right there were two MT's, a 250 also. They powered the short lived enduro's here. As I recall they couldn't compete with the Yamahas, but gave quite a few people the chance to go racing inexpensively.

Sam Green Racing · « **Reply #18 on:** July 05, 2007, 04:23:16 PM »

Quote from: .RJ on July 05, 2007, 01:18:43 PM

Excellent - thank you

Now to find one...

You would probably pick up a later model RS125 a lot cheaper with allmost twice the power

Sam.

Sam Green Racing · « **Reply #19 on:** July 05, 2007, 04:30:17 PM »

Quote from: Hondell on July 05, 2007, 11:12:33 AM

It's a Honda 2 stroke--- Yes a HONDA. I raced TA 125 Yamahas in the 70's, TD 250's, TR2b 350 Yamahas and thats a Honda.

Rick

Where did you race in the 70s and what's your location ?

Sam.

.RJ · « **Reply #20 on:** July 06, 2007, 06:03:40 AM »

Quote from: SamCR750 on July 05, 2007, 04:23:16 PM

You would probably pick up a later model RS125 a lot cheaper with allmost twice the power

You're probably right

I'll just have to keep my ear on the ground and hope to get a 'barn fresh' bike or something. I'm looking for a dedicated track bike, and a newer RS125 is on my list along with a few others.

Sam Green Racing · « **Reply #21 on:** July 09, 2007, 01:29:15 PM »

RJ, check out these two sites.

www.fatbaq.com

www.northamericantwostrokes.com

Sam.

mack808 · « **Reply #22 on:** July 09, 2007, 04:31:47 PM »

That is a MT12R, appears to even have a upgraded/larger front disc with the hydraulic upgrade from the original mechanical disc brake. I raced one from 78-1981. Even painted it the same as the thumbnail someone sent in the RWB paint scheme. They were fun and can still be found. There was a unmolested one for sale a few years back and VMD at Mid-Ohio......

News:

Author Topic: OT - 2-stroke vintage race bikes? (Read 3745 times)