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Old 10-23-2008, 04:47 PM   #16
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Questions?? One more MR21B01 ?

Originally Posted by Jeff Ford View Post
Your bearing sizes should be 7mm x 19mm for the front and 14mm x 25.4 for the main. A RB C6 has a 14mm x 25.6mm I believe.

the oven trick works well but I have since bought the GRP bearing removal, installation tool and it works great..

I have never tried a local bearing supply for them, for the rpms we turn in these engines, I;m not sure that I would trust one.
One more question my Ninja is the Ninja MR21B01 I know the new ones are built by OS are the bearings the same

14x25.4x6mm Rear Bearing - ninja JX21B01

Our Price: $46.39

7x19x6mm Front Bearing - ninja JX21B01

Our Price: $20.39


Why do the prices I am finding on there site seem so much more?

Thanks Again Guys Everyone Here Has Been REally Helpful!

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Old 10-23-2008, 05:00 PM   #17
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Rob, I have what you need. You can call or visit our site.


You need The CB-607C2RS and the CB-MR25414


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Old 10-23-2008, 05:01 PM   #18
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Correct link
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Old 10-23-2008, 05:03 PM   #19
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Cool there you go...Parts #'s and web site, now that's customer service at its best.
Collection:Kyosho Turbo Scorpion, Losi 8ight-T race roller, Losi 22-4, Traxxas Slash 4x4 (speedrunner), HPI R40, HPI RS4 3 Evo, HPI RS4, Losi Mini-T, Mugen MRX-3, HPI RS4 Mini Electric, HPI RS4 Mini nitro
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Old 10-23-2008, 06:00 PM   #20
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Originally Posted by Peter Martin View Post
Dang it, I didn't get in on this soon enough...

But, Peter is the MAN when it comes to Ceramics...

Don't forget to get some of the "lateral thrust" clutch bearings...They are the best I've ever ran. Last a long time, and have very little deflection...Ask Peter about them...You'll be glad you did...
Have Fun...Burn Nitro...

Rob B.

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Old 10-23-2008, 06:41 PM   #21
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The TKO's are great. Get them straight from TKO. They are the best around AND cheaper than most (that's why you see such a price difference).

The process for replacing the bearings is the same for Ninja's, GRP's RB's etc. only bearing sizes may vary.
Sean. Certified speed crazed mowron.
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