New member and a cbr900rr owner - Wrist Twisters
 1Likes
  • 1 Post By martin_deyanov
 
Thread Tools Display Modes
post #1 of 10 Old 02-10-2017, 04:24 PM Thread Starter
Tirone
 
Join Date: Feb 2017
Posts: 4
Rep Power: 1
 
New member and a cbr900rr owner

Hey guys,

New member here.

I ride a 97 900RR blade, modified over the years:
- Streetfightered - stripped all front fairings, headlight and dash, just a ricambi weiss bellypan
- Complete 954 front end - triples, forks, brakes, clip-ons
- 954 front and rear wheels

I have been tracking the hell out of it last year and quickly realized suspension needs a bit of work and also stock footpegs sit really low... having scraped almost half an inch off each of them

Anyways, currently in the process of respringing the forks to my weight, reshiming the stock compression valves (actually found the forum looking for info on that), replacing the rear shock with a mint 954 one and looking for rear sets options.

Love the forums, a good deal of information here.
Attached Images
File Type: jpg 10404002_10206557280304142_5465189198071639532_o.jpg (121.4 KB, 22 views)
File Type: jpg 12109910_10206557278384094_6029208459887580304_o.jpg (164.4 KB, 23 views)
LDH likes this.

martin_deyanov is offline  
Sponsored Links
Advertisement
 
post #2 of 10 Old 02-10-2017, 06:21 PM
McTavish
 
mcromo44's Avatar
 
Join Date: Oct 2007
Location: Calgary
Posts: 5,590
Rep Power: 1
 
Quote:
Originally Posted by martin_deyanov View Post
Hey guys,

New member here.

I ride a 97 900RR blade, modified over the years:
- Streetfightered - stripped all front fairings, headlight and dash, just a ricambi weiss bellypan
- Complete 954 front end - triples, forks, brakes, clip-ons
- 954 front and rear wheels

I have been tracking the hell out of it last year and quickly realized suspension needs a bit of work and also stock footpegs sit really low... having scraped almost half an inch off each of them

Anyways, currently in the process of respringing the forks to my weight, reshiming the stock compression valves (actually found the forum looking for info on that), replacing the rear shock with a mint 954 one and looking for rear sets options.

Love the forums, a good deal of information here.
Nice!
And welcome aboard.

mcromo44 is offline  
post #3 of 10 Old 02-10-2017, 06:55 PM
Tirone Choolaces
 
marylandmike's Avatar
 
Join Date: Aug 2007
Location: USA
Posts: 11,122
Rep Power: 1
 
Garage

Awards Showcase
Wrist Twisters Event Attendance Donation Donation 
Total Awards: 3

Welcome Martin,
Great looking bike!

marylandmike is offline  
 
post #4 of 10 Old 02-10-2017, 08:05 PM
LDH
Test Rider
 
LDH's Avatar
 
Join Date: Feb 2006
Location: by the ocean
Posts: 4,334
Rep Power: 1
 

Awards Showcase
Trackday Recognition Referral Award 
Total Awards: 2

You are scraping the foot pegs because you are not leaning off the bike properly and instead forcing the bike to lean for you. Work on body positioning and you will find that it alleviates a lot of the problems you are having not only with the foot pegs, but the suspension as well.

LDH is offline  
post #5 of 10 Old 02-11-2017, 02:57 AM Thread Starter
Tirone
 
Join Date: Feb 2017
Posts: 4
Rep Power: 1
 
Quote:
Originally Posted by LDH View Post
You are scraping the foot pegs because you are not leaning off the bike properly and instead forcing the bike to lean for you. Work on body positioning and you will find that it alleviates a lot of the problems you are having not only with the foot pegs, but the suspension as well.
Generally agree, but if you are judging by the pictures, they are quite old. I have since improved a lot in both body position and pace.
On the other hand stock 954 forks are notoriously undersprung and is not possible to set correct sag even with max preload. Hopefully with proper springs, things will be much better overall.

martin_deyanov is offline  
post #6 of 10 Old 02-11-2017, 03:35 AM
rmb
Let's go!
 
rmb's Avatar
 
Join Date: Aug 2009
Location: Sussex Couty NJ
Posts: 7,649
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 9

Hello and welcome!

rmb is offline  
post #7 of 10 Old 02-11-2017, 03:51 AM Thread Starter
Tirone
 
Join Date: Feb 2017
Posts: 4
Rep Power: 1
 
Thanks guys.

Forgot to mention:
- stick coils from a gixxer 1k
- freeflow air filter and exhaust
- dynojet jetkit
- -1/+2 sprockets

martin_deyanov is offline  
post #8 of 10 Old 02-11-2017, 07:52 AM
LDH
Test Rider
 
LDH's Avatar
 
Join Date: Feb 2006
Location: by the ocean
Posts: 4,334
Rep Power: 1
 

Awards Showcase
Trackday Recognition Referral Award 
Total Awards: 2

Quote:
Originally Posted by martin_deyanov View Post
Generally agree, but if you are judging by the pictures, they are quite old. I have since improved a lot in both body position and pace.
On the other hand stock 954 forks are notoriously undersprung and is not possible to set correct sag even with max preload. Hopefully with proper springs, things will be much better overall.
Springs will certainly help get the sag correct, but the dynamic relationship with the geometry in motion is more controlled by the valving. When you trailbrake into the turn while simultaneously carrying the most lean angle the damping is what controls how much dive you get out of the forks. It won't be enough to just do springs. At the very least do a full 20mm piston kit. I don't remember if the 954 forks have a topout spring, but I believe they do which can easily be modded as well.

LDH is offline  
post #9 of 10 Old 02-11-2017, 08:20 AM Thread Starter
Tirone
 
Join Date: Feb 2017
Posts: 4
Rep Power: 1
 
I have the forks in pieces right now, no topout spring.

Honestly, trying to get somewhat decent suspension performance with minimal cost, while saving up for a modern bike for track duty.

Read that you can get decent results modifying the shim stack on the stock valves, do you have any experience with this?

martin_deyanov is offline  
post #10 of 10 Old 02-11-2017, 10:41 AM
LDH
Test Rider
 
LDH's Avatar
 
Join Date: Feb 2006
Location: by the ocean
Posts: 4,334
Rep Power: 1
 

Awards Showcase
Trackday Recognition Referral Award 
Total Awards: 2

It can be done, but you need to be prepared to do it over & over again many times until you get the results you want if you want a truly beneficial improvement rather than just something different than what you already have. Then again even a very minor improvement is still an improvement...

LDH 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