I'm with them, LOVE the name. With a handle like that, who da h*ll needs a compensating sprocket? But if you gots one of them, too. It reduces the shock load to the tranny when you let the clutch out or when you start. Which in turn keeps the flywheels form sustaining major surges which in turn can throw them out of time/balance. The old ones were 2 steel collars with a series of ramps and a big a$$ spring in between them. Some of the "newer"bikes experience a "clunking" sound when you hit the starter, that is the comp. sprocket bottoming out. Doesn't hurt anything, but sounds like the primary is coming off. If you power your bike up, ie, 113" 124" you'll most likely have to shelf it, won't handle the hp and torque. GUMBY

 

The compensator sprocket dampens (reduces) torsional vibration created by the crankshaft so it is not transmitted through the drivetrain causing rider discomfort and premature component wear.

Patent definition: A shock-absorbing sprocket or gear assembly or like torsionally elastic device is described having resilient cushioning means interposed between mating lugs of the hub and rim to smooth and dampen torsional shocks and vibrations produced by a power drive train. An improved radial bearing surface is provided which maintains symmetry of the bearing load with respect to the drive, and which ensures concentricity between the hub and rim and keeps the rim from wobbling axially or orbiting radially with respect to the hub during operation. The cushioning means are configured relative to the hub and rim to accommodate angular displacements of at least 9°.[8D][/align][/align][/align]

 

Discomfort and PREMATURE what? Couldn't let it sleep.

 

LOL ! Yeah and who wants to wear out their components prematurely!!!

 

good stuff!

so a belt primary gives a bit? interesting that they use belt primary drives on drag bikes, i reckon that has proven better than chain...>

glad y'all dig the nickname, LOL!

 

A belt primary flexes a lot compared to metal on metal components. Pretty much all engines today have noise-vibration-harshness (NVH) reduction dampers on them.You wouldn't like your bike without one. That engine would beat the crap out of the rider in short time.

 

Belt gives to a certain point, but not much. It runs much quieter, and one of the reasons they came out with it way back "in the day" [:'(], is because back then, primaries were what is called a feed and bleed or a contiuous loss system. Belt got away from the oil running all over the place. Up until the past few years, the biggest belt was a 3". So if you wanted to "drag race" and you had mega HP, you went back to a chain to hold the power, the belt teeth would just peel off the body of the belt. But they make 5" pro street belts now, which will hold up, well they did, but nowyou have guys who want to go to 155" (who shall remain anonymous on this FORUM, even tho he posts regularly and lives in Maine) so those guys go back to chain once again to hold the power. Confused sofa? It is sort of the "Old" power/tire syndrome. Bigger tires, need more power. OOPS, I built too much power, now I have to buy bigger tires.so on and so forth until you end up with a monster truck. One chases the other. GUMBY

 

Yes it helps absorb the "shock pulses" etc..etc... And it also comes loose/backs off and will scare the beejeebies out of you.

 

right on! thanks for replies and info and all.

i had an 84 and a 1/2 shovel back in the day i think the oil in the primary came outta the motor oil line but it looks like these days you pour in a couple quarts of oil in the primary.

 

Keeps yur "mating lugs" in prime condition!!