RG500 Performance Transmission
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RG500 Specs:
498cc
2 Stroke Sq. Four
406 lbs Wet
4.5/1.3 Gal Tank
279/72 Kms Range
6 Speed Tranny
Rotary Valves
28mm Flat Mikunis
7.0-1 Compression
96 Horsepower
110/90 16 F Tire
120/90 17 R Tire
56.1"  Wheelbase
25.2 Degree Rake
31.3" Seat Height
5.8" Clearance
0-60 in 3.04 sec
1/4 M in 11.37 sec
Braking 60-0 111ft

 
 

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This is a drop in replacement for the stock RG500 transmission.  This transmission solves several of the classic problems of the stock gearbox.

First, it is more robust.  It has been designed with strength and long lasting durability as it's foremost characteristic.  High quality, high strength materials and material treatments have been employed to make this, by far, a superior transmission assembly.  The material selected is SAE 4340 nickel-alloy steel.  Heat treated and tempered back to Rc 34 and gas nitride hardened to a .30 mm deep case.

Second, the gear ratios have been modified to provide for more consistent close ratio performance.  This also corrects the steep 1st gear ratio that is a nuisance with the stock transmission.

Third, the drive-lug, (drive-dog), design provides for quick, easy, rock-solid engagement.  The three-on-three gear to gear design allows the drive-lugs to be large and robust even with the tapered under-cutting which prevents the transmission from "popping" out of gear.  Also a common problem with  the stock transmission.

Finally, this transmission also has Needle Roller bearings employed as the bearing elements in all non splined gears.  There is even one provided for the kickstart gear.  There are also oil relief grooves in all of the required gear faces and oil passage holes in both shafts to facilitate superior bearing oiling and longer life.  The drive shaft has also been lengthened by 10 mm to aid those who wish to run a wider tire and need to space the drive sprocket out farther.  A spacer will be provided for this purpose.  (If you don't utilize this option, the spacer needs to be used under the sprocket nut.)

Gear ratios are as follows:
1st - 2.286:1
2nd - 1.750:1
3rd - 1.381:1
4th - 1.174:1
5th - 1.040:1
6th - .960:1
KS - 1.333:1

What you get:
Both the Counter Shaft and the Drive Shaft.  All of the transmission gears, (1st through 6th).  The Kickstart gear. all required needle bearings, thrust washers, and retaining rings.  The transmission will also be assembled.  Also provided with each transmission will be an assembly drawing, an item list, and instructions on assembly, dis-assembly, installation, recommended care, inspection, and maintenance.  Sometime soon I will have a bearing, retaining ring, and thrust washer, re-build kit priced and available.

Prices are in US dollars and are as follows:
If I make one transmission - $5434.00
If I make 5 sets of transmissions - $3013.00
If I make 10 sets of transmissions - $2438.00 US dollars
If I make 20 sets of transmissions - $2166.00 US dollars

I am currently taking orders for  batch runs.  If you wish to order, there is a non-refundable $500.00 deposit required, so order with care!  With your deposit, you must provide your name, email address and a postal address.  Phone numbers are optional.  You must also inform me as to what quantity discount batch you wish to be included in, (i.e. a  1, 5, 10, or 20 set batch).  Once the batch quantity is reached for the respective batch groups, notification will be sent via email informing you that final payment needs to be made then we will process the batch order.  Delivery will be approx. 4 to 6 weeks after receipt of all batch order payments.  Please note that you can change/upgrade your batch order status at any time via email.  This will determine how long it may be that you will have to wait to reach
the batch quantity.

At this time, I am accepting payments in US dollars only.  Money Orders, Cashiers Checks, Certified Bank Checks, or Credit Cards via PayPal will be accepted.

You can send payment to:
RG500 Performance Transmission
Attn. Jay Sander
6709 Northampton Lane
Hamilton, Ohio 45011
USA

Phone:  513-887-9047
Fax:  513-856-8599
Email: jaybob@fuse.net
PayPal account:  http://www.paypal.com/  use this email address, jaybob@fuse.net

Legal Disclaimer:
This is an off-road, racing transmission.  You do with it what you want.  Due to the nature of "after-market", "self-installed", "self-maintained", components, there will be no warranty, implied or otherwise.  Of course if it doesn't fit, (which it will, because I will hand assemble, and test fit each and every one of them), send it back and I'll send you another one.  If you want a full warranty, it will cost you dearly.

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