» Help Support .NET!
DCSportbikes Premier Membership for 25$ per year. Discounts! Click here for full information.

Now available in the .NET Shop:

Get your DCSBN Gear!
» Shoutbox
Sorry, only registered users have the ability to use our real-time shoutbox to chat with other members.

Register now, it's free!
» Online Users: 189
5 members and 184 guests
2blueyam, CCS762ZX6, GRN96WS6, RRonin, tonetone
Most users ever online was 4,519, September 2, 2015 at 03:26 AM.
Go Back   DCSportbikes.net > Sportbike Operation > HOW-TOs

LinkBack Thread Tools
HOW-TO: Suspension Tuning Guide - Suspension Troubleshooting Symptoms
Addicted to Cajen food...
LaoTzu's Avatar
Posts: 3,796
Join Date: July 12, 2005
Location: Germantown MD
HOW-TO: Suspension Tuning Guide - Suspension Troubleshooting Symptoms - March 1, 2006, 02:26 PM

Here are some basic symptoms of suspension damping problems that you might find affecting your bike. Remember these are extreme examples; your symptoms may be more subtle. You may also have to find an acceptable compromise on either end of the adjustment spectrum. It all depends on how the bike's handling "feels" to you.
  • The fork offers a supremely plush ride, especially when riding straight up. When the pace picks up, however, the feeling of control is lost. The fork feels mushy, and traction "feel" is poor.
  • After hitting bumps at speed, the front tire tends to chatter or bounce.
  • When flicking the bike into a corner at speed, the front tire begins to chatter and lose traction. This translates into an unstable feel at the clip-ons.
  • As speed increases and steering inputs become more aggressive, a lack of control begins to appear. Chassis attitude and pitch become a real problem, with the front end refusing to stabilize after the bike is countersteered hard into a turn.
  • The ride is quite harsh--just the opposite of the plush feel of too little rebound. Rough pavement makes the fork feel as if it's locking up with stiction and harshness.
  • Under hard acceleration exiting bumpy corners, the front end feels like it wants to "wiggle" or "tankslap." The tire feels as if it isn't staying in contact with the pavement when on the gas.
  • The harsh, unforgiving ride makes the bike hard to control when riding through dips and rolling bumps at speed. The suspension's reluctance to maintain tire traction through these sections erodes rider confidence.
  • Front end dive while on the brakes becomes excessive.
  • The rear end of the motorcycle wants to "come around" when using the front brakes aggressively.
  • The front suspension "bottoms out" with a solid hit under heavy braking and after hitting bumps.
  • The front end has a mushy and semi-vague feeling--similar to lack of rebound damping.
  • The ride is overly harsh, especially at the point when bumps and ripples are contacted by the front wheel.
  • Bumps and ripples are felt directly; the initial "hit" is routed through the chassis instantly, with big bumps bouncing the tire off the pavement.
  • The bike's ride height is effected negatively--the front end winds up riding too high in the corners.
  • Brake dive is reduced drastically, though the chassis is upset significantly by bumps encountered during braking.
  • The ride is plush at cruising speeds, but as the pace increases, the chassis begins to wallow and weave through bumpy corners.
  • This causes poor traction over bumps under hard acceleration; the rear tire starts to chatter due to a lack of wheel control.
  • There is excessive chassis pitch through large bumps and dips at speed and the rear end rebounds too quickly, upsetting the chassis with a pogo-stick action.
  • This creates an uneven ride. The rear suspension compliance is poor and the "feel" is vague.
  • Traction is poor over bumps during hard acceleration (due to lack of suspension compliance).
  • The bike wants to run wide in corners since the rear end is "packing down"; this forces a nose-high chassis attitude, which slows down steering.
  • The rear end wants to hop and skip when the throttle is chopped during aggressive corner entries.
  • There is too much rear end "squat" under acceleration; the bike wants to steer wide exiting corners (since the chassis is riding rear low/nose high).
  • Hitting bumps at speed causes the rear to bottom out, which upsets the chassis.
  • The chassis attitude is affected too much by large dips and G-outs.
  • Steering and control become difficult due to excessive suspension movement.
  • The ride is harsh, though not quite as bad as too much rebound; the faster you go, the worse it gets, however.
  • Harshness hurts rear tire traction over bumps, especially during deceleration. There's little rear end "squat" under acceleration.
  • Medium to large bumps are felt directly through the chassis; when hit at speed, the rear end kicks up.
  MySpace.com Page Send a message via AIM to  
Reply With Quote

Thread Tools

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 On
Pingbacks are On
Refbacks are On

Powered by vBadvanced CMPS v3.2.3

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0
vBulletin Skin developed by: vBStyles.com
All logos and trademarks in this site are property of their respective owner. The comments are property of their posters, all the rest 2002-2010 by DCSportbikes.net. DCSportbikes.net is owned by End of Time Studios, LLC.