Pre 78 125's

[mainline]

i like riding my yz125x its a fun bike to ride
jim

I'm with you Jim, I love my 125c/x. Too many people think they have to ride a '77 model bike in pre 78, or an '84 in pre85 etc.

[albrid-3]

The cr may be behind in travel, they are still a rocket ship. today standard does it really matter. I have a 72 penton 125 mx I would ride in the pre75 125 class, it would be happy to ride it, to me its about having all different bikes on the starting grip.

[motomaniac]

The cr may be behind in travel, they are still a rocket ship. today standard does it really matter.

I had a full 9" both ends on mine Dave with a fork kit and longer shocks .Handled to rough better than RMs and YZ's.

[JohnnyO]

true but more power was easy to get , 34mm mik alone made a big diff, head and porting and maybe a pipe and they flew .AB won the OZ title on one in 76  with close to stock suspenders. But for sure the RM was best off the floor in 77 .

AB was second in the '76 125 title to Steve Cramer but Darryl Willoughby did win the '77 Oz title on a CR.

Jeez you're good . Anyway they were competitive in the day with some work and a good 125 pilot.At that level its all about max power , a reed valve  have less significance .

Yeah i like the CR even though i raced a RM125b in '77.
That's why i've got a Mugen kit sitting here and a '76 CR125 stripped down ready to build one day...

[Ted]

Suzuki won every 125 World Championship from 1975 to 1984 inclusive ( the eras we all ride in )
10  titles in a row. They obviously knew something the others didn't

[TM BILL]

For me its an RM 125A  the B was a better bike in most respects but the A motor really revs 

I would probably run B forks dropped through the clamps to keep the ride height lower like a A and decent modern shocks .

[Slakewell]

For me its an RM 125A  the B was a better bike in most respects but the A motor really revs 

I would probably run B forks dropped through the clamps to keep the ride height lower like a A and decent modern shocks .

Bill wouldn't it be easier to fit a A barrel or porting to a B model?

[Davey Crocket]

Different bore and stroke Slakey    54x54= B.....56x50=A.

[Slakewell]

Different bore and stroke Slakey    54x54= B.....56x50=A.

Arhhh Ok so one needs to swap the engine, does the A corner better? And is that because of the frame or throttle response?

[TM BILL]

Different bore and stroke Slakey    54x54= B.....56x50=A.

Arhhh Ok so one needs to swap the engine, does the A corner better? And is that because of the frame or throttle response?

When the track gets rough ( Old School rough) the B suspension will be an advantage  but on todays VMX tracks i think the A is a better option .

The A really revs out ( i compare it to an RM 125 S with an extra gear ) the B you have to short shift , if you try to rev it out it signs off real quick .

The RM 125B is a great bike i just prefer the slightly lower ride of the A and the A motor characteristics .

If you get a chance ride Joans 125 A /B hybrid its a really great ride 

Next favorites for this class would be

RM 125 B

RM 125 S

YZ 125 X

YZ 125 D

I have not cut a lot of laps on the 76/77 CRs but the ones i have were a good ride and very competitive .

I think a blinged up CR is the best looking bike for the era followed by the RM 125S and the RM 125 B

[Paul552]

Someone please say a stock yz125d with a far below average rider with above average weight is the go!!!
Please

[motomaniac]

true but more power was easy to get , 34mm mik alone made a big diff, head and porting and maybe a pipe and they flew .AB won the OZ title on one in 76  with close to stock suspenders. But for sure the RM was best off the floor in 77 .

AB was second in the '76 125 title to Steve Cramer but Darryl Willoughby did win the '77 Oz title on a CR.

Jeez you're good . Anyway they were competitive in the day with some work and a good 125 pilot.At that level its all about max power , a reed valve  have less significance .

Yeah i like the CR even though i raced a RM125b in '77.
That's why i've got a Mugen kit sitting here and a '76 CR125 stripped down ready to build one day...

Is the kit complete ? What are you waiting for ?

[TM BILL]

Someone please say a stock yz125d with a far below average rider with above average weight is the go!!!
Please

That combination is a shue in for the 1977 stock YZ 125 for the well fleshed Novice class  

[Big Scotty]

Ok Paul,just for you my magic yz125d made an average oversize rider look good last year,well have to line up either side of scrivo this year,he'll think he's seeing double,see ya at glenbawn

[Paul552]

Ok Paul,just for you my magic yz125d made an average oversize rider look good last year,well have to line up either side of scrivo this year,he'll think he's seeing double,see ya at glenbawn

Can't wait

See you there.

I will drive in Saturday morning.