919 Axles - Wrist Twisters
 
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post #1 of 11 Old 08-21-2008, 11:54 AM Thread Starter
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919 Axles

Can anyone tell me the frt and rear axles shaft diameters? I really didn't want to break everything loose to measure. I'm going to get another set of bearings with no seals for wheel balancing purposes. The Honda repair manuel has no mention of shaft dia. Thanks, Dickey

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post #2 of 11 Old 08-21-2008, 12:07 PM
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I believe front is 20mm and rear 22mm. But foe balance purposes I don't think
you need those bearings. This is the rig I came up with for my old wheel aligning
stand. Two plates with some small Abec5 bearings and I use the axle.

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post #3 of 11 Old 08-21-2008, 12:12 PM
 
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I skimmed the service manual.

Rear axle nut thread dia is 18mm. torqe to 69 ft. lbs.

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post #4 of 11 Old 08-21-2008, 12:18 PM
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Rear axle is 0.78440 as measured with a Mitutoyo digital micrometer.

0.78740 = 20 mm

I will say 20 mm

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post #5 of 11 Old 08-21-2008, 12:19 PM
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Quote:
Originally Posted by nate View Post
I skimmed the service manual.

Rear axle nut thread dia is 18mm. torqe to 69 ft. lbs.
Thread diameter is smaller than shaft diameter.

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post #6 of 11 Old 08-21-2008, 12:34 PM
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Your right, the rear runs 2 6204 bearings which are 20x47x14.

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post #7 of 11 Old 08-21-2008, 12:56 PM Thread Starter
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Thanks for the info. I feel that the extra set of bearings on the out side of the shaft will allow the wheel to spin easier, and possible use less weight. Thanks

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post #8 of 11 Old 08-21-2008, 01:07 PM
 
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Quote:
Originally Posted by hasbeenracer View Post
Rear axle is 0.78440 as measured with a Mitutoyo digital micrometer.

0.78740 = 20 mm

I will say 20 mm
You =

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post #9 of 11 Old 08-21-2008, 02:19 PM
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Well it just so happens that I replaced my rear axle just after I bought my Hornet 900 (919) and I just went out and measured it for you... 20mm or 0.7874 inch..

It's the same as the old CB 900/750 Boldor. How do I know?? Because I fitted one to my bike.. Why?? Because I wanted a hollow axle to use my axle stand with...

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post #10 of 11 Old 08-21-2008, 05:55 PM
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Quote:
Originally Posted by brokerecord View Post
Thanks for the info. I feel that the extra set of bearings on the out side of the shaft will allow the wheel to spin easier, and possible use less weight. Thanks
It can't hurt but I agree with Rich that you probably don't need it. I did exactly what you are thinking, but the outer bearings never really even turn during balancing on mine.

Good luck!

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post #11 of 11 Old 08-23-2008, 06:11 PM
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Wheel bearings are to stiff to spinn freely for balancing. That is why wheel balancers have their own set of small free spinning bearings

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