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post #21 of 34 (permalink) Old 06-05-2009, 12:17 AM Thread Starter
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Quote:
Originally Posted by mrgrn View Post
looks great larry

you don't happen to know if the NC30 SSS will bolt up on the RC30 do you? I need one to send to my guy to have made a bit different and i can't get mine off right now so i though using a easily found NC would suffice?

possibly if your old 45 swinger fits my 30 could i borrow yours for a week or so with compensation of course?
Thanks Mark... I don't know if an NC will fit an RC... and my measurements
show that our swingarms are not compatible for a swap... they are different by 10mm...

Larry L
94 RC45 #2
90 RC30 #44 sold
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
Yank and bank your brains loose...

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post #22 of 34 (permalink) Old 06-05-2009, 12:27 AM Thread Starter
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Quote:
Originally Posted by eye-p View Post
Beautiful work.

You are crazy to use an aluminium pivot. I dont care who uses them or how much weight they save. Totally not worth the risk.
Thanks but I remember the same "why risk it" fears when the first aluminum
frames and swingarm were offered to the public... now if you look at your
own steering stem more likey than not it's aluminum... most manufactures
today employ aluminum stems for it's superior weight to strength ratio... so
if we can risk an aluminum steering stem why can't we risk an aluminum
pivot??? technically speaking steel is more of an cost cutter today than any
thing else...

Larry L
94 RC45 #2
90 RC30 #44 sold
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
Yank and bank your brains loose...

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post #23 of 34 (permalink) Old 06-05-2009, 01:52 PM
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Quote:
Originally Posted by eye-p View Post
Beautiful work.

You are crazy to use an aluminium pivot. I dont care who uses them or how much weight they save. Totally not worth the risk.
ive got a hard anodized world superbike pivot in my 999. the first yaer i bent the stock steel one so bad i destroyed it getting it out. ive had the allum one for 3 years now with even more power and more track days and it just slides out exery time.
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post #24 of 34 (permalink) Old 06-05-2009, 02:20 PM
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I am running hard anodized aluminum axles in my GSXR 750. Very light and very strong, no issues of any kind.
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post #25 of 34 (permalink) Old 06-05-2009, 03:04 PM
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Quote:
Originally Posted by Busy Little Shop View Post
Thanks but I remember the same "why risk it" fears when the first aluminum
frames and swingarm were offered to the public... now if you look at your
own steering stem more likey than not it's aluminum... most manufactures
today employ aluminum stems for it's superior weight to strength ratio... so
if we can risk an aluminum steering stem why can't we risk an aluminum
pivot??? technically speaking steel is more of an cost cutter today than any
thing else...
Larry - If I followed your pics correctly, you have made an aluminum nut for the aluminum axle. If so, that is a recipe for a major headache. When 2 aluminum parts are threaded together they very often gall and weld themselves together. When that happens the only way to get them apart is to cut them. That could be quite an ordeal down in that counterbore. If you stick with alum on alum use lots of anti-seize and cross your fingers.

O-Thump
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post #26 of 34 (permalink) Old 06-05-2009, 04:07 PM
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OK Larry when you building yourself your very own RC211V?

Current Ride:
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post #27 of 34 (permalink) Old 06-05-2009, 06:44 PM Thread Starter
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Quote:
Originally Posted by Old Thumper View Post
Larry - If I followed your pics correctly, you have made an aluminum nut for the aluminum axle. If so, that is a recipe for a major headache. When 2 aluminum parts are threaded together they very often gall and weld themselves together. When that happens the only way to get them apart is to cut them. That could be quite an ordeal down in that counterbore. If you stick with alum on alum use lots of anti-seize and cross your fingers.
True... when employing aluminum threads anti-seize is a must... but I'm not
crossing my fingers... instead I used 7075 T6 aluminum which is one of the
highest strength to weight alloys available... it is ideally suited for highly
stressed parts such as threads...

I machined my front Ohlins axles and my rear axle nut out of 7075 T6 which
handles 140 inch pds of torque...

Ohlins 7075 T6 aluminum axle...



7075 T6 aluminum nut holding 140 in pds of torque...

Larry L
94 RC45 #2
90 RC30 #44 sold
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
Yank and bank your brains loose...

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post #28 of 34 (permalink) Old 06-05-2009, 06:54 PM Thread Starter
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Quote:
Originally Posted by drthompson65 View Post
OK Larry when you building yourself your very own RC211V?
Here's proof that I love the V5 but I don't think it is worth building... WSBK
rules won't allow it... AMA rules won't allow it... MotoGp rules penalize it too
much... besides do we really need more than 4 cylinders???


Larry L
94 RC45 #2
90 RC30 #44 sold
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
Yank and bank your brains loose...

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post #29 of 34 (permalink) Old 06-05-2009, 08:23 PM
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Larry I have to admit you are the only guy who's wife would worry about coming home and finding you in bed humping a V4...

Current Ride:
None. Currently Drooling...
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post #30 of 34 (permalink) Old 06-06-2009, 12:05 AM
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Quote:
Originally Posted by drthompson65 View Post
Larry I have to admit you are the only guy who's wife would worry about coming home and finding you in bed humping a V4...
how do we know she hasnt???
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post #31 of 34 (permalink) Old 06-06-2009, 12:19 AM
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Quote:
Originally Posted by demontech View Post
ive got a hard anodized world superbike pivot in my 999. the first yaer i bent the stock steel one so bad i destroyed it getting it out. ive had the allum one for 3 years now with even more power and more track days and it just slides out exery time.
Fair enough. Though I imagine that like every other part on a corse bike, your pivot has a specific service interval. You likely know what that interval is, right Travis?


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post #32 of 34 (permalink) Old 06-06-2009, 12:21 AM
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Quote:
Originally Posted by Busy Little Shop View Post
Thanks but I remember the same "why risk it" fears when the first aluminum
frames and swingarm were offered to the public... now if you look at your
own steering stem more likey than not it's aluminum... most manufactures
today employ aluminum stems for it's superior weight to strength ratio... so
if we can risk an aluminum steering stem why can't we risk an aluminum
pivot??? technically speaking steel is more of an cost cutter today than any
thing else...
True, and a good point about the stem.
I would guess that the forces placed on a stem are quite different than on an axle, or pivot bolt. I guess Im just an old codger who hates change.


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post #33 of 34 (permalink) Old 06-06-2009, 02:13 AM
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at what age does a codger become a geezer?...

...dawg
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post #34 of 34 (permalink) Old 06-06-2009, 02:49 AM
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I don't think it's so much a matter of age, as it is a matter of waist band to navel relation. codger is up to, but once your above. . . that sir, is geezer territory.


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06 rc51 banzai/Simons, pcIII,ohlins... the usual
94 vfr 750 cafe project
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