Suzuki 2 Strokes

What is the theory behind this?...never have I seen such!

How does it work, do you run two chains?!? WHY???

Somebody educate me....

http://cgi.ebay.com/ebaymotors/Suzuki-R ... ccessories

We use the double sprockets here at work and the chain has two separate sets of rollers and only one set of plates in the middle.with long pins going all of the way through.

But that is in a factory on conveyor belt drives.

I've never seen that before on a motorcycle. It would seem to me that it would be a lot of extra rotating mass and way excess strength for the power the engine can produce.

Thats a dragbike style chain/sprocket setup, not really a need for it on a stock or slightly modded buffalo

It was to tame that awesome 50 hp!


Truthfully, I haven't a clue. I've never seen those on a bike except for a Harley's primary chain.


Lane

I think Lane hit the nail on the head. A firebreathing GT750 that weighs more than a family car will wear out chains pretty fast - well it did back in the day.

Laverda used a similar set up on one of their endurance racers and and according to Sr Laverda, stock chains used to last only 45 minutes of racing before they had to be adjusted and only 6 hours before they had to be replaced. Duplex chains lasted a whole 24 hour race.

Of course chains have come a long way since then and a modern 520 chain can handle 150HP on a GSXR or 250HP on a MotoGP bike. Just have to buy a good enough chain.

So my guess is that it was a longevity issue - Looks trick though.

I have seen several of the old CB750 SOHCs with those. I do believe the main reason was the fact that they threw chains a lot and cracked the cases, this helped to alleviate that problem some. I little overkill if you ask me.