News:

Deals Gap Parking lot triage, looking at sunroofed #2:


This year:  May 5-12th.  25th year!
(CLICK IMAGE FOR MEET INFO)

Main Menu

Small end road bearing options

Started by BCRD, March 05, 2020, 12:21:55 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

BCRD

I've seen somewhere that there is an upgraded small rod bearing. What are my options?

m in sc

use one for an kawasaki H1, has an extra roller.

SoCal250

THE TECH LIBRARY »ENGINE

Hopefully Chuck will see this and add his expertise. He's the one with the most up to date info
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

SUPERTUNE

Quote from: m in sc on March 05, 2020, 01:04:04 PM
use one for an kawasaki H1, has an extra roller.
Yes Mark ,those were the way to go in the early days.
But not available anymore.
LA sleeve used to carry them, now...when you order any bearing from suppliers for the H1...you get the standard RD bearing from all the suppliers. Sucks.
I found a snowmobile a bearing that I now use to get the H1 type bearing.
This RD market keeps me always looking for the things were easy to get ahold of, now is a problem to get.
I can only get them now buying a 100 at a time from a specialty supplier...pain in my wallet!!
I sell them for $20 each.
I'll try and add a Tip Of The Day about them.
I have to use them in all my upper performance builds as once you use them and the RM 125 lower bearing any rod failure goes away until the main bearing fails now before the rod! So it is a good upgrade. 76HP tested to run a whole roadrace season! (aprox 18-23 races)
Chuck
RD machine work, boring, porting, cranks and engine building.


Chuck 'SUPERTUNE' Quenzler III
Team Scream Racing LLC
1920 Sherwood St. STE A
Clearwater, FL. 33765
cqsupertune@tampabay.rr.com

m in sc

well damn, that sucks they aren't readily available as they used to be. thanks for the info chuck, glad you have them.

SUPERTUNE

RD machine work, boring, porting, cranks and engine building.


Chuck 'SUPERTUNE' Quenzler III
Team Scream Racing LLC
1920 Sherwood St. STE A
Clearwater, FL. 33765
cqsupertune@tampabay.rr.com

Alain2

1973 RD350, 1977 RD400, 1979 RD400, 1980 RD400, 1985 MJ50, Goped Zenoah 30cc.

SUPERTUNE

RD machine work, boring, porting, cranks and engine building.


Chuck 'SUPERTUNE' Quenzler III
Team Scream Racing LLC
1920 Sherwood St. STE A
Clearwater, FL. 33765
cqsupertune@tampabay.rr.com