Upgrading Front Forks on 02 ST - Triumph Forum: Triumph Rat Motorcycle Forums
» Main Menu

Discussion Forums
 » Twins
 » Tiger
 » General
 » RAT

Features
 » Blogs

Motorcycle.com Links

Contribute
 » Photo

Motorcycle Forums
» Insurance
» Sponsors
» Our Partners
»ATV Reviews
»Motorcycle Games

Sprint Forum Sprint ST - Sprint RS - Sprint GT Join in on one of the world's most active Triumph Sport-Touring Forums.

Reply
 
LinkBack Thread Tools Display Modes
Old 12-28-2006, 08:13 AM   #1 (permalink)
Senior Member
Formula Extreme
 
Join Date: Jul 2002
Location: Mount Wolf, PA
Posts: 645
Ok, so I need to do a 24k mile service on my forks.

I could just replace seals and service oil, or I could, since I got it apart, begin upgrading them.

Several of my thoughts:
1) Race-Tech progressive springs and gold valve emulator (approx $400)

2) Buy a used set of USD forks and triple clamps from a Hyabusa or maybe a newer Triumph S3 and fit it to my 02 ST. Cost...Pricesless :-D

What are your thoughts?
__________________
Let's Roll!
My Photo Album
Sport is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-28-2006, 10:29 AM   #2 (permalink)
Senior Member
World SuperBike
Main Motorcycle: '03 Sprint ST
 
pushr0d's Avatar
 
Join Date: May 2004
Location: Baja 'Bama (Panama City, FL)
Posts: 2,181
Other Motorcycle: 2000 Sprint ST (wrecked)
Extra Motorcycle: 1988 FXR Lowrider (sold)
I like the idea of lopping the mushy 3" off the OEM springs, adding spacers and emulators, and using 10wt oil.

Much less than $400.
pushr0d is offline   Reply With Quote
Old 12-28-2006, 01:51 PM   #3 (permalink)
Lifetime Premium
Site Supporter
World SuperBike
Main Motorcycle: My '04 Sprint-ona
 
RexxyPup's Avatar
 
Join Date: Jun 2005
Location: Swindon, UK
Posts: 1,812
Other Motorcycle: Want a 675
Extra Motorcycle: I wish!
I got a pair of WP springs off ebay and had them put in at the 24k service with standard oil... what a difference!


Rexx

[ This message was edited by: RexxyPup on 2006-12-28 12:52 ]
__________________
WARNING:! Low flying Sprint-ona ahead!

Old Albums
New Albums
RexxyPup is online now   Reply With Quote
Old 12-28-2006, 05:58 PM   #4 (permalink)
Senior Member
Grand Prix 500
Main Motorcycle: Mine
 
Green01SprintST's Avatar
 
Join Date: Sep 2002
Location: Southern California
Posts: 127
I tried the Racetech straight rate springs plus emulators in the forks of my '01. OMG! they about jarred my eyeballs out they were so stiff. I dropped down 1 weight range and it was still bad so I dumped the RT springs all together and bought a set of Hypertech progressives. Much better. Next I'm going to dump the 15 weight oil (!) the RT folks recomended and go to 10 weight. A long, dirty and expensive process of elimination to get what I want but I am sure it will be worth it in the end.
__________________
Proud to be a US Army veteran. AIRBORNE!
Green01SprintST is offline   Reply With Quote
Old 12-28-2006, 06:25 PM   #5 (permalink)
Senior Member
Supersport 600
Main Motorcycle: 2000 sprint ST
 
Suncoast's Avatar
 
Join Date: Oct 2005
Location: Sechelt, B.C. Canada
Posts: 186
Other Motorcycle: 1996 KLR 650 for the dirt
Hey Rexx What are WP springs??? :???: And what are the thoughts behind cutting springs and using spacers :???:

[ This message was edited by: Suncoast on 2006-12-28 17:26 ]
Suncoast is offline   Reply With Quote
Old 12-29-2006, 09:11 AM   #6 (permalink)
Senior Member
Formula Extreme
 
ooobaby's Avatar
 
Join Date: Feb 2004
Location: Omaha, Nebraska, USA
Posts: 784
Did the progressive springs, Racetech fork emulators and stock oil thing. Man what an improvement! Go for it. Can't comment on the Hyabusa approach, never done it and don't know how big a can of worms it would be. Do know it would also give you better brakes too in the process though. That's never a bad thing, but would probably require a new master cylinder etc..
ooobaby is offline   Reply With Quote
Old 12-29-2006, 05:07 PM   #7 (permalink)
Senior Member
SuperStock
 
Join Date: Feb 2004
Location: Courtenay, BC, Canada
Posts: 269
Sport,
This past summer I put 0.95 kg springs in from Sonic Springs and changed the oil for 15wt. Quite a diff over the stock setup!! The front was still pretty compliant, but stiffer and very well planted.
In retrospect, I should have used 0.90kg instead, would suit my weight better I think (~190lbs). This coming spring I'm going to blend a 12.5wt fork oil which I hope will improve the compression a little bit (i.e. a bit more supple).
If I could afford the switch to some up-side-downies, I would 'cause it would look real good on the Sprint. For more info on that kind of setup, check out Khulka in the Speed Triple section.

Cheers,
Mark
hootieST is offline   Reply With Quote
Old 12-29-2006, 11:03 PM   #8 (permalink)
Senior Member
Formula Extreme
 
Join Date: Jan 2004
Location: Chesnee, SC
Posts: 924
Did RT emulators and HyperPro totally progressive springs. The HyperPro's did a lot and the emulators added a bit more control and adjustability but could have lived with just the springs. They are not overly harsh at all. Also, you can use up to 125mm of fork oil rather than the 145 recommended by Triumph to adjust compressability. You might want to do the bushings while you're at it. I'm running 10wt and have tried 5wt, 8wt and 15wt before I settled on 10. You can experiment with this. Put in new springs which is cheap and easy just to see what happens. If you need more, do the emulators. You can do the springs in less than an hour without removing the fork tubes. Doing the emulators takes more time and is a no return trip because you have to drill the damper rods.

I would NOT do the cut method of shortening the springs. If you think about it and consider how it affects total spring travel (read how far to bottoming) I think you will come to the same conclusion.

__________________
Universal Laws of MC Forums
1. Just because the engine is on and the wheels are turning doesn't mean you're "riding".
2. The bike you ride and the farkles you buy have no correlation to how good a rider you are.
3. The ignorant can be enlightened, but the stupid just drive on forever.
rodneybrown is offline   Reply With Quote
Old 12-30-2006, 06:15 AM   #9 (permalink)
Lifetime Premium
Site Supporter
World SuperBike
Main Motorcycle: My '04 Sprint-ona
 
RexxyPup's Avatar
 
Join Date: Jun 2005
Location: Swindon, UK
Posts: 1,812
Other Motorcycle: Want a 675
Extra Motorcycle: I wish!
Sport

Try here

WP Suspension

I got mine for £35 off eBay and had them fitted as part of the 24k service.... no extra cost.... nice tech guy!

Rexx
__________________
WARNING:! Low flying Sprint-ona ahead!

Old Albums
New Albums
RexxyPup is online now   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Upgrading front brakes loco Daytona Deliberations 12 07-02-2007 07:47 AM
front forks canadianbonnie Twins Technical Talk 3 06-14-2007 08:19 PM
Front forks mshelton Club Cafe' 18 03-10-2007 10:42 AM
Front Forks picksnsticks The Rocket Science Forum 5 02-20-2007 07:38 PM
front forks Haggis Sprint Forum 5 06-16-2005 04:12 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 09:28 AM.



Motorcycle News, Videos and Reviews
Ducati Forum Harley Davidson Honda 600RR Kawasaki Forum Yamaha R6
1199 Panigale Roadglide Forum Honda CBR1000 Vulcan Forum Yamaha R1
Ducati Monster Harley Forums Honda CBR250R ZX10R Forum Star Raider
Suzuki GSXR V-Rod Forums Honda Shadow Kawasaki Motorcycles Star Warrior
SV650 Forum BMW S1000RR Honda Fury Kawasaki Versys Drag Racing
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes
Volusia Forum BMW F800 Triumph 675 MV Agusta Forum Streetfighters

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.

Search Engine Optimization by vBSEO 3.6.0