USD triples and rc51 fork question - Wrist Twisters
 
Thread Tools Display Modes
post #1 of 23 Old 10-07-2009, 09:21 AM Thread Starter
Ballaholic
 
hornet919's Avatar
 
Join Date: Jun 2009
Location: nj
Posts: 682
Rep Power: 1
 
USD triples and rc51 fork question

soooi found a sweet set of usd yokes form a company in the uk, and with the current exchange rates, they are incredibly cheap!!! anyways, my question is will these accept the rc51 fork legs? they say they are 50mm top clamp and 54mm bottom clamp. here is the link for anyone who is interesed, exchange rate makes them around $550usd . . .

Yoke - Honda Hornet 900 & 919 [YOKHOR1] - 350.00 : Billet Bike Bits, Lovely Bits for your pride and joy

hornet919 is offline  
Sponsored Links
Advertisement
 
post #2 of 23 Old 10-07-2009, 09:52 AM
Tribunus Laticlavius
 
voodooridr's Avatar
 
Join Date: Jan 2006
Location: Salinas, CA
Posts: 4,601
Rep Power: 1
 
With the drop top crown they'd probably work with the 929/954 legs, might move the clamping surface to far down for the RC51 legs but I'm not sure. Both RC51 and 929/954tubes are 50mm top and 54mm lower. Good price though, drop them an e-mail and see what they say.

Dan


Dan
voodooridr is online now  
post #3 of 23 Old 10-07-2009, 10:17 AM Thread Starter
Ballaholic
 
hornet919's Avatar
 
Join Date: Jun 2009
Location: nj
Posts: 682
Rep Power: 1
 
Quote:
Originally Posted by voodooridr View Post
With the drop top crown they'd probably work with the 929/954 legs, might move the clamping surface to far down for the RC51 legs but I'm not sure. Both RC51 and 929/954tubes are 50mm top and 54mm lower. Good price though, drop them an e-mail and see what they say.

Dan
just emailed them. i was thinkin the same thing about using the 954 forks with the drop down. would be nice cause they appear to be alot cheaper than rc51 forks. i emailed them right after i posted that so hopefully they will get back soon. only thing is i will have to get brackets for headlights (as it looks unless they say different) and somehwere to mount the igntion cause i dont see provisions for it

hornet919 is offline  
post #4 of 23 Old 10-07-2009, 10:37 AM
a.k.a. Macgruber
 
omaha_919's Avatar
 
Join Date: Jun 2006
Location: Omaha, NE
Posts: 2,194
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1


Abba Zaba, you my only friend.
omaha_919 is offline  
post #5 of 23 Old 10-07-2009, 11:14 AM Thread Starter
Ballaholic
 
hornet919's Avatar
 
Join Date: Jun 2009
Location: nj
Posts: 682
Rep Power: 1
 
got an email back. he says he can mill them to accept any fork legs but now that i know the rc/954 forks will slide right in there, thats good enough for me. just sent another email asking about headlight/igntion mounting since mdtmoney (sorry i know i totally botched your name) had a post saying the s&p has spots to mount the headlight bracket and ignition. ill keep it updated if people are interested

hornet919 is offline  
post #6 of 23 Old 10-07-2009, 11:16 AM
a.k.a. Macgruber
 
omaha_919's Avatar
 
Join Date: Jun 2006
Location: Omaha, NE
Posts: 2,194
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1

I don't have the money to spend, but I'm DEFINITELY interested!!!

Abba Zaba, you my only friend.
omaha_919 is offline  
post #7 of 23 Old 10-07-2009, 05:54 PM Thread Starter
Ballaholic
 
hornet919's Avatar
 
Join Date: Jun 2009
Location: nj
Posts: 682
Rep Power: 1
 
ok maybe someone can help translate this for me. i tried asking him if the top triple was stepped down one inch so i can figure out if i can run the 954 forks on and this is the response i got from him. . .

The Hornet top yoke over here is stepped.

I'm pretty sure it's a 20mm step down, so you could get away with either legs, as the longer ones could just slide thru a little further.


and in the previous email he says this. . . .

From memory, it's either 20mm or 25mm (1"), but it is the same as the original Hornet.


sooo does the uk hornet have a stepped triple from the factory or is something getting lost in translation?

hornet919 is offline  
post #8 of 23 Old 10-07-2009, 05:57 PM Thread Starter
Ballaholic
 
hornet919's Avatar
 
Join Date: Jun 2009
Location: nj
Posts: 682
Rep Power: 1
 
here is a pic of their triple so you can get an idea of what im talking about. it looks like its got a 1" step down where the fork legs mount. . . .


hornet919 is offline  
post #9 of 23 Old 10-07-2009, 06:21 PM Thread Starter
Ballaholic
 
hornet919's Avatar
 
Join Date: Jun 2009
Location: nj
Posts: 682
Rep Power: 1
 
ok some at this point im just posting this for myself so i dont lose this info. . . .

FL (mm) RD(mm) WAD(mm) DBF c-c (mm)

RC51
00-01 742 320 22 214 130mm axle travel

929 00-01 724 330 25 214 120mm axle travel
954 02-05 724 330 25 214

FL = Fork length fully extended
RD = Rotor Diameter
WAD = Wheel Axle Diameter
DBF c-c = Distance Between Forks center to center

hornet919 is offline  
post #10 of 23 Old 10-07-2009, 10:04 PM
a.k.a. Macgruber
 
omaha_919's Avatar
 
Join Date: Jun 2006
Location: Omaha, NE
Posts: 2,194
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1

RC51 00-01 742 320 22 214 130mm axle travel

929 00-01 724 330 25 214 120mm axle travel

954 02-05 724 330 25 214


That's good stuff, where did you dig it up?

Abba Zaba, you my only friend.
omaha_919 is offline  
post #11 of 23 Old 10-08-2009, 06:06 AM Thread Starter
Ballaholic
 
hornet919's Avatar
 
Join Date: Jun 2009
Location: nj
Posts: 682
Rep Power: 1
 
Quote:
Originally Posted by omaha_919 View Post
RC51 00-01 742 320 22 214 130mm axle travel

929 00-01 724 330 25 214 120mm axle travel

954 02-05 724 330 25 214


That's good stuff, where did you dig it up?
just following google link after link after link and eventually you find stuff. i like to do research before i purchase so i dont have to buy things twice (learned from experience)

hornet919 is offline  
post #12 of 23 Old 10-08-2009, 06:08 AM
Tirone
 
efitzgerald's Avatar
 
Join Date: Jun 2009
Location: Michigan
Posts: 71
Rep Power: 1
 
Make sure the fork spacing is correct. I had him make me a set. They were 7mm or so narrower than US usd forks. Personally I would go elsewhere. I had him mill pockets in the bottom, and they are still very heavy. The stem is solid steel. So if you are adding weight to keep the front down, this may be a good thing. Finish is poor at best. You will need to make or have him make mounts for ignition and lighting.

Eric

efitzgerald is offline  
post #13 of 23 Old 10-08-2009, 07:05 AM
a.k.a. Macgruber
 
omaha_919's Avatar
 
Join Date: Jun 2006
Location: Omaha, NE
Posts: 2,194
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1

Quote:
Originally Posted by efitzgerald View Post
I had him mill pockets in the bottom, and they are still very heavy.
They certainly look it.
It appears that there would be a substantial amount of material that could be milled out of those things & still be structurally sound.


... but I'm not an engineer, nor do I have experience in the matter, so what do I know?

Abba Zaba, you my only friend.
omaha_919 is offline  
post #14 of 23 Old 10-08-2009, 07:12 AM Thread Starter
Ballaholic
 
hornet919's Avatar
 
Join Date: Jun 2009
Location: nj
Posts: 682
Rep Power: 1
 
Quote:
Originally Posted by efitzgerald View Post
Make sure the fork spacing is correct. I had him make me a set. They were 7mm or so narrower than US usd forks. Personally I would go elsewhere. I had him mill pockets in the bottom, and they are still very heavy. The stem is solid steel. So if you are adding weight to keep the front down, this may be a good thing. Finish is poor at best. You will need to make or have him make mounts for ignition and lighting.

Eric
so you got a set of these triples from this same guy?

hornet919 is offline  
post #15 of 23 Old 10-11-2009, 11:51 AM
Tirone
 
efitzgerald's Avatar
 
Join Date: Jun 2009
Location: Michigan
Posts: 71
Rep Power: 1
 
Yeah, his name is Roy, he is a really nice guy. But I would go for the style and performance triples. Unless you have machining equipment or someone that will do it for you, I wouldn't bother. Plus once you factor in finishing and misc machining its not that great of a deal.

Eric
Attached Images
File Type: jpg 12122008808.jpg (85.1 KB, 41 views)

efitzgerald is offline  
post #16 of 23 Old 10-12-2009, 01:58 PM
The 919 project continues
 
mdtoney's Avatar
 
Join Date: Sep 2006
Location: Seattle, WA
Posts: 2,427
Rep Power: 1
 

Awards Showcase
Donation Veteran 
Total Awards: 2

Before sending them any money I would INSIST that the triples have all the same mounting points as the OEM triples (gauges, ignition, headlight bracket) if you plan on using the OEM parts. The last thing you want is to get your shiny new triples in the mail and realize that you still need to spend a lot more time and money at a machine shop just to make them usable.
We just installed my S&P triples this weekend, and having everything bolt right on made the job go quite smoothly. The only machine work required was to press the lower stem bearing onto the stem, everything else bolted together just like OEM. I'm not a fabricator, so to me it was worth spending a little bit more money to have a product that was ready to go.

Also, the site lists the shipping weight as 18lbs, which is insanely heavy for a set of triple clamps! Ask if he can hollow them out like in etfitzgerald's pic, and use a hollow stem, and try to shave off about 75% of that weight.

mdtoney is offline  
post #17 of 23 Old 10-19-2009, 01:33 PM
Old, Bold rider
 
robtharalson's Avatar
 
Join Date: Jan 2007
Location: Aurora, Colorado
Posts: 2,354
Rep Power: 1
 
Garage

Awards Showcase
Donation Veteran Community Leadership 
Total Awards: 3

Quote:
Originally Posted by efitzgerald View Post
Yeah, his name is Roy, he is a really nice guy. But I would go for the style and performance triples. Unless you have machining equipment or someone that will do it for you, I wouldn't bother. Plus once you factor in finishing and misc machining its not that great of a deal.

Eric
They're solid? That's a lot of extra metal! A quick model revealed about four pounds for the lower, just under three for the upper, and two for the stem. It sounds like his liability provider got nervous.

This is more like it:
Lower triple. 1.6 pounds in 6061 T6, 1 pound in AZ61A magnesium.


Upper. 0.66 pound in 6061, .45 in mag.


Add about 1/2 pound for a hollow 7075 T6 stem.
Of course the upper is not complete or resolved for the 929/954 forks, or 919 instruments or ignition switch, but you get the idea. Actually I saw a lower triple at Willow Springs that looked very similar but was hollow cast and weighed about 1 1/2 pounds (what a coincidence!), so he got the look right, but not the engineering. I suppose the look is the important part for your average customer, at least for his customers, but come on!

I say go ahead and buy them -- one thing's sure: THEY'LL NEVER BREAK!

Rob

If it has already been done, it is safe to assume it is possible to do it.
On the other hand, if it has not been done never assume it is impossible to do it.
------- Rob --------
robtharalson is online now  
post #18 of 23 Old 10-19-2009, 01:58 PM
Tribunus Laticlavius
 
voodooridr's Avatar
 
Join Date: Jan 2006
Location: Salinas, CA
Posts: 4,601
Rep Power: 1
 
And we're waiting..................................and waiting..............................and waiting.................................for production to begin

Dan


Dan
voodooridr is online now  
post #19 of 23 Old 11-04-2009, 12:48 PM
Old, Bold rider
 
robtharalson's Avatar
 
Join Date: Jan 2007
Location: Aurora, Colorado
Posts: 2,354
Rep Power: 1
 
Garage

Awards Showcase
Donation Veteran Community Leadership 
Total Awards: 3

Quote:
Originally Posted by voodooridr View Post
And we're waiting..................................and waiting..............................and waiting.................................for production to begin

Dan
Here ya go. Both designs are at my CNC shop for quotes.

Shown with my Thar Bars and Thar Clamps (which can be made a variety of heights).
The lower will weigh about 1.75 pounds, the upper 1.2. The design for the upper will be finalized as soon as I remove my upper triple to get all the mount centers for stock instruments and ignition switch.
As soon as he gets back to me I'll figure a final price for the set.

Coming soon: CNC milled triples similar in design to the USD triples for conventional 43mm forks / stock fork spacing.

Who's seriously interested?

Rob

If it has already been done, it is safe to assume it is possible to do it.
On the other hand, if it has not been done never assume it is impossible to do it.
------- Rob --------
robtharalson is online now  
post #20 of 23 Old 11-04-2009, 03:55 PM
The 919 project continues
 
mdtoney's Avatar
 
Join Date: Sep 2006
Location: Seattle, WA
Posts: 2,427
Rep Power: 1
 

Awards Showcase
Donation Veteran 
Total Awards: 2

Dammit Rob, where were you a few months ago when I sent my money overseas for triples?? Your triples with clamps and bars look sweet! I can't wait to see pics of the real deal.

mdtoney is offline  
post #21 of 23 Old 11-09-2009, 11:49 AM
Heavy Metal
 
ratdog's Avatar
 
Join Date: Jan 2006
Location: swamp in the wood
Posts: 4,304
Rep Power: 1
 

Awards Showcase
Donation Extraordinary Ride Donation Wrist Twisters Event Attendance 
Total Awards: 5

have a couple sets of 929/954 forks available for those pursuing the project

Agree that S&P stuff is sweet but Rob's stuff gives you some new options, less weight and good looking.

ratdog is offline  
post #22 of 23 Old 11-09-2009, 12:52 PM
Tribunus Laticlavius
 
voodooridr's Avatar
 
Join Date: Jan 2006
Location: Salinas, CA
Posts: 4,601
Rep Power: 1
 
How did I miss the recent posts to this thread? Those clamps look like they'll be just the ticket, now, which kidney is the easiest to sell? right?left?


Dan
voodooridr is online now  
post #23 of 23 Old 11-22-2009, 11:39 PM
efe
Tirone
 
Join Date: Jun 2009
Location: Istanbul/TURKEY
Posts: 97
Rep Power: 1
 
I have the RC51 forks now and looking for the options for triples. If the upper triple design changes a bit i would definately want to have one.

efe is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Wrist Twisters forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome