What 60mm Crank?

[servetakid]

Right a club mate has a rapido barrel and brand new mugello piston, he nipped it up and couldnt be bothered running it in so bought a monza. Since then it has been cleaned up and tuned by chisel speed and produces 23bhp with the same carb and exhaust as mine. It however, was ported with a 60mm crank in mind. I am thinking of buying this for my Jet200 once repaired.

So what do people rate to be a quality 60mm crank?

[Muppet]

indian webs with a stepped pin cud be a good'n

[servetakid]

indian webs with a stepped pin cud be a good'n

I have looked at eccentric crank pins in the past. From what i found they werent readily avialible and werent really economical once the price of a jap rod and fitting came into it. Unless you know different?

[rosscla]

From price low to high

Evolution also here cheaper

Italian

PM

BGM

I've stuck one of the Evolution cranks in my GP to run with my Rapido. Seems like a very nice crank for the money.

[servetakid]

From price low to high

Evolution also here cheaper

Italian

PM

BGM

I've stuck one of the Evolution cranks in my GP to run with my Rapido. Seems like a very nice crank for the money.

Cheers for the reply, i was looking at those evolution cranks. Have you done any miles on your rapido? and what power do you expect it to make?

Also, i assume the crank shimming issues on the BGM one has been sorted? I read some of the early ones were incorrectly machined?

[rosscla]

Not run mine mine yet, still sorting out some issues with other elements of the build and it's mostly been on hold over the winter as I don't have an indoor workspace, but I'm thinking first decent day, getting the exhaust on and attempting a start will be priority no. 1

[servetakid]

Just done some googling. ANd the only online post i can find about the Evolution crank shafts was "Twenty Eights" snapped con-rod.... Which doesnt fill me with confidence...

I am just after peoples experience, what crank, what top end, what power and how many miles and would you recomend using said crank.

Cheers,

[mickdale]

run many miles with tuned ts1s on one MEC 60mm crank - great price at 120 quid

[Agent Buchwald]

MEC race - thousands of miles in a TS1 230 and now, re-rodded, in a 240. The conrod and big end that came out were absolutely mint. Crank problems seem to be confined to original Indian and 300 quid ones.

[jonashford]

Af rayspeed have a new crack available with different configs suitable for rbs around £180.00