CBR500r  CB500F  CB500X


Transmission Shift Improvement kit - Pro Shift Kit

(sample pic only)

SHFT-PRO-H50   $139.95
(includes steel microbearing detent arm and spring)

rpl 24430-mgz-j00 and 24435-mgz-j00
11394-MGZ-J00 gasket not included

Add $20 for Hybrid Ceramic Microbearing 

1. Choose your shipping method

(image of stock parts)

(image of stock parts)
How to help give the 500 silky, distinct shifting.
Some cb500s have rather notchy shifting and hard to find neutral - this kit will help improve that.

The world famous  "MicroBearing detent arm and a spring" PRO Shift kit

Includes the Factory Pro Microbearing Detent Arm and Factory Pro shift spring

Improves the lazy shifting.
Makes shifting EASIER and quicker and virtually eliminate missed shifts. Helps that 1-2 shift and false neutrals.

Shifts more consistently and helps prevent missed shifts (which damage shift forks and engagement dogs)

1-2 hours, no case splitting required
Arm and spring sits right behind the clutch basket.



.............. I decided to take the cover off once more and check everything. I confirmed once more that the arm was working right, but then I took off that center piece with the little plates and springs and pistons. I think something there must have been backwards because when I put it all back in again it seemed tighter and more "right". After reinstalling the cover the bike would shift to all gears while turning the back wheel. Put oil back in and fired her up, went on a test drive, all is groovy. Shifting like a million bucks. No crunch! Tight and fast. Thank you!

David Poag



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Absolutely NO carb parts sold in California.

New and improved Suzuki Teka SFI  2

with new TPS display and "MMT" Memory Module Tuner

Finally - Quick, easy, cost effective Suzuki tuning with no expensive "add-on boxes"
Suzuki cruisers and sportbikes

Please click here for more info

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M-F, 9am - 5pm, Pacific time, -7 or -8 GMT

800 869-0497
 USA and Canada

415 883-5620

parts information

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Mailing / Shipping address:

Factory Pro
101c Roblar Drive
Novato, CA

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EFI and Carb Tuning - Most all FI and carb tuning

by Wheelsmith Racing

Flight Training - train with AMA race winner Todd Harrington.

The Harringtons own American Flyers, one of the most established flight training facilities in the USA.

 8 locations

The Rich Oliver Mystery School will help you discover your hidden inner strength. 
It will challenge you. It will teach you a new way of thinking, and a new way of riding. You can take your riding to an exciting new level!  

We use a variety of proven drills and training techniques. 
Practicing these techniques with our Yamaha dirt track trainers will enhance your abilities both on the track or the street.  

It doesn't matter what you ride or race, the Rich Oliver Mystery School improves everyone's skill level and mindset!

WW2 vintage flying Special

Book a sightseeing flight over the Wine Country or a Kamikaze aerobatic flight or a biplane flight over famous Sonoma Raceway, the Golden Gate Bridge and the San Francisco Bay for one or two during the spring and get a free souvenir t shirt!
(NEW!  Ask about the P-40 flights!)

707 938 2444

Just tell them that you saw this on the Factory Pro website!
Northern California's most unforgettable flying experience.  No experience required.  Open weekends!

The extension of the laboratory for engines of the Swiss Federal Institute of Technology was completed in about 1935. Its architect was Rudolf Otto Salvisberg (1882-1940). He had a successful career in Berlin but returned to Switzerland after the advent of the Nazis. His architectural style was somewhat similar to that of Erich Mendelsohn. The staircase of the laboratory is in normal use but well preserved.
Edited to the tunes of Chemical Residue by Herbie Hancock.