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Rivera Primo Inc.®
Home of Primo Belt Drives®

PowerDrive™ 6 Transmissions

Over 4 years ago, Rivera Primo launched its new line of premium quality Left Side Drive & Right Side Drive Softail® style 6 speed transmissions, highlighted by an industry first 2 year unlimited mileage replacement guarantee. Our PowerDrive™ 6 transmissions have become a force to be reckoned with, in terms of reliability and smoothness. These transmissions all have in common features that make these boxes the best in the industry such as choice of finish (polished, chrome or black wrinkle), 32 tooth final drive pulley, close ratio 2.94:1 first gear; second gear 2.21; third gear 1.60, fourth gear 1.23; fifth gear 1.00, 0.860:1 overdrive sixth gear, & forged and back cut gears for positive shifting.
With the release last year of their  4 to 6 speed conversion kit for 4 speed swing arm frames which includes a specially made 6 speed splined shaft transmission specifically for 4 speed swing arm frames, they put the PowerDrive™ transmission line literally into overdrive!!.

 

Have a 1986-2006 HD style Big Twin? Primo ‘s PowerDrive™ 6 speed gear set is the thing you need for speed! Its a complete bolt-in kit for changing the old no-balls 5 speed to a smooth shiftin’, rpm lowering 6 speed overdrive. Especially if you drive in that 75 mph and over area, sixth gear will drop your rpm a good 500 points and will smooth out the ride even on a rigid framed bike. Built tough to handle a lot of torque!!

Will not work on 2006 Dyna models!

 

Finished in flawless high polish and show chrome plating, this PowerDrive™ 6 speed fits 1993-1998 Touring models and comes completely assembled with a black wrinkled oil pan and a billet aluminum oil fill spout that accepts the stock filler cap. It comes in two versions: A standard offset for stock bikes with stock width rear tires using a 5/8″ swingarm pivot shaft (1214-0015); and a 1/2″ offset for customs with wide tires and utilizing a 3/4″ pivot shaft (1214-0018).

They offer PowerDrive™ 6 speed transmissions to fit 2000-2006 Twin Cam® Softail® style applications as well as 1999-2006 Twin Cam® Touring applications. And as always, all the PowerDrive™ 6 complete transmission assemblies come with a 2 year, unlimited mileage replacement guarantee and the backing of almost 40 years of the best customer service in the industry.