Back to the Progressive fork springs - Page 2 - 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

Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler.

Reply
 
LinkBack Thread Tools Display Modes
Old 07-12-2011, 12:53 PM   #11 (permalink)
Senior Member
Team Owner
Main Motorcycle: '08 Moto Guzzi 1200 Sport
 
ohiorider's Avatar
 
Join Date: May 2005
Location: Hudson, Ohio - USA
Posts: 5,513
Other Motorcycle: 2012 Guzzi Griso 8v SE
Extra Motorcycle: My 1991 BMW R100GS
Quote:
Originally Posted by 08Bonnie View Post
Ohio,

Have you checked static sag in the front? Should be around 20-25mm. This is the distance your front forks compress with ONLY the weight of the bike. What about rider sag? Should be around 30-35mm. This is the distance the forks compress with the weight of you on the bike. I think this should be your first step.

I had the same issues you describe. My sag #'s were all over the place, after applying some tested theories the ride could not be better.
08 Bonnie - I have not. I do have the Thruxton preload adjusters installed on the forks, so with some luck, unloaded and loaded sag MIGHT fall in the range of the preload adjusters.

I did notice this am after filling gas tank to the top, the additional load on the front end seemed to stabilize things. So, next step was to play with the rear shock preload. The Progressive 440s make this easy, with their hand-adjustable rings. First I noted that I was set very low on preload (one hash mark from no preload at all, which equaled 25 (lets call them clicks - actually visible marks, easily counted). Cranked them in to no preload, worked my way back to 25, then to 50, finally 60. This seems to have eliminated more of the flutter. I believe this would have slightly increased (a) front end loading and (b) reduced front end rake.

Bob
__________________
GBNF: 03 T100 Luc Org and Silv: 122/42 jets, TORs, 18T, UNI filter, no AI, Polaris bellmouth, Metz 880 tires, Prog. 440 shocks (105/150 springs), 11-1124 frk springs, Thrux frk caps, gaiters, MotoTwin bars, 6024 lamp, htd grips, 12v outlet.
ohiorider is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-27-2012, 03:52 PM   #12 (permalink)
Senior Member
Formula Extreme
Main Motorcycle: '10 Bonnie SE- aka Maggie
 
Wheelhorse's Avatar
 
Join Date: Apr 2010
Location: Illinois
Posts: 774
Other Motorcycle: '82 Suzi GS1100GLZ
Extra Motorcycle: '73 Suzuki TS50
So what ever happened? Last you wrote was the intiminators were out, progressives back in?

Have you decided to stay with that route?
__________________
Maggie- '10 Bonnie SE; SAI, 02R, Dom. Touring, DNA Pods, TTP Tune #11 with Stage 1 ign., 36E's
Wheelhorse is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



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
Progressive Fork Springs Johnww Twins Technical Talk 2 03-08-2009 10:34 PM
Cheap progressive springs fork springs uzidzit Twins Technical Talk 2 03-26-2008 01:26 AM
what do progressive fork springs really do? peter_s Twins Technical Talk 17 08-25-2007 04:16 PM
Progressive Fork Springs wonderdog Twins Technical Talk 2 02-05-2007 10:20 AM
Progressive Fork Springs Hinckley Classic Triples 21 01-07-2004 10:27 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 10:59 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Forum Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum HD LiveWire Forum Ninja H2 Forum Ducati Scrambler Forum Kawasaki Ninja 250SL Forum

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.