Can I use these fork tubes on my race bike

Forum rules
Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
h2o-pro
Settled in member
Posts: 19
Joined: Mon Jan 23, 2012 5:28 am
Location: Queensland, Australia
Can I use these fork tubes on my race bike

Post by h2o-pro »

While ago I got some chinese fork tubes off ebay... thought they'd do as spares for my NC30 race bike, which was fine at the time... I just looked them over & put them in the spares rack...
Last meeting of the season I managed to stuff up my forks... So out come the new forks...which of course are quite different.
Can any one tell me if I can use these... and what they are (apart from chinese crap)... to be honest my race bike could have odd forks fitted.

As you can see they are different. the existing ones have a pair of holes & the chinese ones have four but have some sort of blanking tube fitted which covers 2 holes and partially covers the other two.
The existing ones are 520 long the new ones 580 & the insert also prodrudes 20mm less from the china version
Image
Image
Image
User avatar
Cammo
Site Supporter
Site Supporter
Posts: 4505
Joined: Thu May 01, 2008 12:35 am
Bike owned: NC30
Location: Melbourne, Australia
Re: Can I use these fork tubes on my race bike

Post by Cammo »

The nc30 has 2 different types of forks - early (non-cartridge) and late (cartridge) types - this could be the problem.

More info here: viewtopic.php?f=24&t=39444&hilit=tubes
"It's just a ride" Bill Hicks
h2o-pro
Settled in member
Posts: 19
Joined: Mon Jan 23, 2012 5:28 am
Location: Queensland, Australia
Re: Can I use these fork tubes on my race bike

Post by h2o-pro »

Thanks Cammo ... I have gone through this thread ... this is my top adjuster
Image
Do I have a bitsa here ?
I have Rick O's springs & spacer in these too ... I thought I had late type forks ???
User avatar
Cammo
Site Supporter
Site Supporter
Posts: 4505
Joined: Thu May 01, 2008 12:35 am
Bike owned: NC30
Location: Melbourne, Australia
Re: Can I use these fork tubes on my race bike

Post by Cammo »

That's a late type fork top, any chance they sent you early fork tubes?

If it's anything like this ebay ad then they don't differentiate between the early and late model forks which would be wrong, they're different parts and not interchangeable: http://www.ebay.com.au/itm/HONDA-VFR400 ... 651wt_1313
"It's just a ride" Bill Hicks
h2o-pro
Settled in member
Posts: 19
Joined: Mon Jan 23, 2012 5:28 am
Location: Queensland, Australia
Re: Can I use these fork tubes on my race bike

Post by h2o-pro »

Yep Cammo ... those are in fact the beauts ... They are different for sure to my originals
The thread that you linked has me worried though as I seem to have late tops on early forks
Am I getting the correct damping ... yes I get preload... but do the early inserts work with the late tops
User avatar
Cammo
Site Supporter
Site Supporter
Posts: 4505
Joined: Thu May 01, 2008 12:35 am
Bike owned: NC30
Location: Melbourne, Australia
Re: Can I use these fork tubes on my race bike

Post by Cammo »

h2o-pro wrote:Yep Cammo ... those are in fact the beauts ... They are different for sure to my originals
The thread that you linked has me worried though as I seem to have late tops on early forks
Am I getting the correct damping ... yes I get preload... but do the early inserts work with the late tops
It's more likely that you have complete late model forks which are not compatible with the early model tubes you were sent.
"It's just a ride" Bill Hicks
Neosophist
Moderators
Moderators
Posts: 8172
Joined: Fri Jul 04, 2008 1:01 pm
Bike owned: CBR954
Re: Can I use these fork tubes on my race bike

Post by Neosophist »

As cammo said.. The later tops will not work on the earleir forks as the internals are totally different.
If your fork top screws onto the cartidge and doesnt just dangle freely inside then you have the later internals too and most likely the proper fork tubes.

I've heard many stories of shitty chinese tubes, people being sent the wrong type, when finally getting the correct tubes them being distorrted or too small or other problems.

Based on that id say the tubes are junk
xivlia wrote:i dont go fast on this bike so really do not need a rear brake.. /
vic-vtrvfr wrote:Ask xivlia for help, he's tackled just about every problem u could think of...
h2o-pro
Settled in member
Posts: 19
Joined: Mon Jan 23, 2012 5:28 am
Location: Queensland, Australia
Re: Can I use these fork tubes on my race bike

Post by h2o-pro »

Hey thanks for all the info ... Here's top adjuster & insert ...are they defo the later type..?
Image
Image
I've seen some tubes on wemoto's site ... does anybody recommend them ?
http://www.wemoto.com/bikes/honda/vfr_4 ... _-_single/
I guess Italian is better than chinese :grin:

While I'm on the subject of front suspension does anybody have much experience using RaceTech G2R Gold valves
I just race this bike and need good performance from the front end, which I'm lacking a bit with the existing set up
magg
Senior Member
Posts: 1916
Joined: Mon Sep 20, 2010 11:55 pm
Bike owned: VFR400
Location: Blue Mountain NSW Australia
Re: Can I use these fork tubes on my race bike

Post by magg »

What specifically is wrong with the OEM fork tubes and also what is lacking in your existing setup.
Neosophist
Moderators
Moderators
Posts: 8172
Joined: Fri Jul 04, 2008 1:01 pm
Bike owned: CBR954
Re: Can I use these fork tubes on my race bike

Post by Neosophist »

h2o-pro wrote:Hey thanks for all the info ... Here's top adjuster & insert ...are they defo the later type..?
Image
Image
I've seen some tubes on wemoto's site ... does anybody recommend them ?
http://www.wemoto.com/bikes/honda/vfr_4 ... _-_single/
I guess Italian is better than chinese :grin:

While I'm on the subject of front suspension does anybody have much experience using RaceTech G2R Gold valves
I just race this bike and need good performance from the front end, which I'm lacking a bit with the existing set up
Yes they are lter type forks.

Are they all stock (springs etc) it depends on budget but the cheapest and probably most noticable improvement you can make to the stock forks is to get a new set of springs installed and get the suspension setup by a proper specialist unless you know exactly what you doing, you'll also learn a lot. (they will need you and your race gear)

Assuming you havent replaced the springs yet, if that and getting it setup doesnt make things better id consider fork upgrades to 3 way adjustable forks before racetec valves (depending on budget)
xivlia wrote:i dont go fast on this bike so really do not need a rear brake.. /
vic-vtrvfr wrote:Ask xivlia for help, he's tackled just about every problem u could think of...

Post Reply