titanium spring

29 replies to this topic
  • grayracer513

Posted March 06, 2009 - 09:00 PM


Correct spring rate for the combined rider/bike weight is the single most important factor in suspension setup. But without checking, I think you'd need to be pretty light to run a 4.9 rear spring.

  • Brad_Aus

Posted March 06, 2009 - 09:50 PM


The Standard spring rate was 5.5kg/mm '06-'08.

Just after info from people who have actually measured the spring rates. Ive got a std 08 450 here, and it has a red spring - single pink dot. And my graph tells me its 5kg

It varies from 4.88-5kg in the range of 273-240mm compressed length.

Who here has tested them, and not just gone off what the manual says???

  • TD-3

Posted March 07, 2009 - 04:55 AM


anybody no how much i can get for my stock Ti spring from my 2006 with very very low hours on it??

I got around $50 for mine on ebay.

I think the big knock on Ti springs is that they are inconsistant in their spring rates....at least that is what the "suspension gurus" say.

  • yz007f

Posted March 07, 2009 - 10:32 AM


TI springs are fine but if those rubber/plastic tabs at each end get worn or start splitting then you will find that the spring will act softer than it really is in its rate..

Here's my "red" spring tested from my 09' yzf450

Posted Image

  • mc1hd

Posted March 07, 2009 - 12:49 PM


A magnet will tell you.

Magnet no Sticky, Must be Ti

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted March 07, 2009 - 01:57 PM


So, then, Race Tech says they measured it at 5.3, MX-Tech agrees, and here you come with a chart showing 5.3.

I'm beginning to detect a pattern here.

  • RCannon

Posted March 07, 2009 - 07:31 PM


The 2006 yzf 250 used a 5.1 ti spring. Its a good choice for a softer 450 spring or a harder 250 2 stroke spring. Being that it was oem it often shows on ebay for good prices.

Just for fun, price that ti spring from yamaha.

  • robertg

Posted August 11, 2009 - 06:33 PM


Does anyone know what the inside diameter of a titanium spring is? I want to try using one on an Ohlins TTX, which comes with a 61mm spring.

  • grayracer513

Posted August 11, 2009 - 09:55 PM


The YZ spring has a different ID at each end. The dimensions are 63.4x60.6x270.

  • robertg

Posted August 12, 2009 - 04:38 AM


The YZ spring has a different ID at each end. The dimensions are 63.4x60.6x270.

Thanks, It might work with a spacer.

Related Content

WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

First Hare scramble tips by dhend8

Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • Hot  33 replies

Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • - - - - -
  • 0 reviews

yz250x vs 450 4t comparisons (preferably desert riding) needed by JakeNorthrupYZ450F

Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • 9 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.