HRC Setting Data & Maintenance Information
RS250R Suspension Directionality
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Year
'97-'00 '01 '02- |
Feature
NX5 type Slightly stronger damping like the 125 NXA type (full model change) Rear link characteristics slumped in the latter half, making use of traction NXA type Laminated type valves used for front. Better initial movement for rear |
Directionality
Somewhat raised rear height with improved initial turning. Change direction at relatively small radius corner and make sooner points where throttle is widely opened. Lowered rear height to give better initial grip feeling at the rear. Points where traction rises in link characteristics will be used for rising up. Setting is made so as not to suppress gentle suspension movement. Basically, same as the 2001 year model. |
These settings are intended to obtain better turning ability from the RS although the standard settings are enough to go around.
•Example of basic suspension setting on circuits (2000 year RS250R)
•Example of basic suspension setting on circuits (2000 year RS250R)
Front Rear
Fork leg height Spring pre-load Rebound COMP Ride height Spring pre-load Rebound COMP
Standard 14mm 18mm 8th notch back 8th notch back 24mm 175mm 12th notch back 12th notch back
Setting for
dry condition 14mm 18mm 7th notch back 8th notch back 27mm 172mm 16th notch back 12th notch back
Setting for
wet condition 14mm 24mm 8th notch back 11th notch back 25.5mm 175mm 21 notch back 17 notch back
Fork leg height Spring pre-load Rebound COMP Ride height Spring pre-load Rebound COMP
Standard 14mm 18mm 8th notch back 8th notch back 24mm 175mm 12th notch back 12th notch back
Setting for
dry condition 14mm 18mm 7th notch back 8th notch back 27mm 172mm 16th notch back 12th notch back
Setting for
wet condition 14mm 24mm 8th notch back 11th notch back 25.5mm 175mm 21 notch back 17 notch back
*Data above are given for informational purposes.
*Settings vary with weather conditions.
*Setting should be made while checking the state of the machine.
*Settings vary with weather conditions.
*Setting should be made while checking the state of the machine.
Projection, initial, and vehicle height will be changed to increase front loads.
With rear Rebound damping adjustment released, braking or throttle off will be used to produce front and rear pitching, leading to increased front loads, which allows sooner direction changes at the beginning of the corner.
In the setting above, rear suspension stroke of around 1/2 to 3/4 of the shaft would provide the RS with excellent initial turning ability (front: nearly full stroke).
Then spring rate change or initial adjustment should be made depending upon rider weight or riding style.In a circuit, like the Suzuka, where there are high-speed corners, allowing wide-open throttle running, and ascending S-shaped corners, further increased load to the front with the dry sets would cause rear suspension stroke during acceleration, avoiding degraded turning capability resulting from reduced front loads.
Example of creating turning ability at high-speed corners with wide open throttle and ascending corners
With rear Rebound damping adjustment released, braking or throttle off will be used to produce front and rear pitching, leading to increased front loads, which allows sooner direction changes at the beginning of the corner.
In the setting above, rear suspension stroke of around 1/2 to 3/4 of the shaft would provide the RS with excellent initial turning ability (front: nearly full stroke).
Then spring rate change or initial adjustment should be made depending upon rider weight or riding style.In a circuit, like the Suzuka, where there are high-speed corners, allowing wide-open throttle running, and ascending S-shaped corners, further increased load to the front with the dry sets would cause rear suspension stroke during acceleration, avoiding degraded turning capability resulting from reduced front loads.
Example of creating turning ability at high-speed corners with wide open throttle and ascending corners
Front Rear
Fork leg height Spring pre-load Rebound COMP Ride height Spring pre-load Rebound COMP
Setting for dry condition 17mm 18mm 7th notch back 8th notch back 28.5mm 175mm 16th notch back 12th notch back
Fork leg height Spring pre-load Rebound COMP Ride height Spring pre-load Rebound COMP
Setting for dry condition 17mm 18mm 7th notch back 8th notch back 28.5mm 175mm 16th notch back 12th notch back
*Data above are given for informational purposes.
*Settings vary with weather conditions.
*Setting should be made while checking the state of the machine.
*Settings vary with weather conditions.
*Setting should be made while checking the state of the machine.
The RS250R, a completely new model, has been designed to provide higher turning capability.
It has incorporated dimension changes and engine mounting position changes, allowing natural handling at the initial stage of turning. Also, overall rigidity balance has been attained when running at clipping points through the machine rising, providing high turning capability.
The suspension system has undergone major specifications changes as well. The front is the slide fitting 43mm and the rear is 46mm with altered link characteristics, which have attained improved absorption, road holding feel, and traction.
Actually, settings should be so made that the front and rear can aggressively move, like the RS125R. Especially, the rear is designed to be slightly stiff at the initial stage of stroke and gentle in the latter half of the stroke since the link ratio is gently sloped in the latter half of the stroke.
Accordingly, if settings are made so that the rear suspension is stroked by the half only, the harder part of the suspension only would be used, resulting in ineffective traction.
It has incorporated dimension changes and engine mounting position changes, allowing natural handling at the initial stage of turning. Also, overall rigidity balance has been attained when running at clipping points through the machine rising, providing high turning capability.
The suspension system has undergone major specifications changes as well. The front is the slide fitting 43mm and the rear is 46mm with altered link characteristics, which have attained improved absorption, road holding feel, and traction.
Actually, settings should be so made that the front and rear can aggressively move, like the RS125R. Especially, the rear is designed to be slightly stiff at the initial stage of stroke and gentle in the latter half of the stroke since the link ratio is gently sloped in the latter half of the stroke.
Accordingly, if settings are made so that the rear suspension is stroked by the half only, the harder part of the suspension only would be used, resulting in ineffective traction.
Judging from the ratio curve above, the 2001 year model seems stiffer. However, actually the 2000 RS has a spring rate of 7.8kgf/mm, while the 2001 RS has a spring rate of 7 kgf/mm which is softer than the former, resulting in nearly overlapped lines in the graph.
Front Rear
Fork leg height Spring pre-load Rebound COMP Ride height Spring pre-load Rebound COMP
Standard 14mm 18mm 8th notch back 8th notch back 31mm 164.1mm 10th notch back 8th notch back
Setting for
dry condition 14mm 18mm 8th notch back 8th notch back 29.5mm 164.1mm 11th notch back 11th notch back
Setting for
wet condition 14mm 20mm 16th notch back 16th notch back 25.5mm 164.1mm 21 notch back 17 notch back
Fork leg height Spring pre-load Rebound COMP Ride height Spring pre-load Rebound COMP
Standard 14mm 18mm 8th notch back 8th notch back 31mm 164.1mm 10th notch back 8th notch back
Setting for
dry condition 14mm 18mm 8th notch back 8th notch back 29.5mm 164.1mm 11th notch back 11th notch back
Setting for
wet condition 14mm 20mm 16th notch back 16th notch back 25.5mm 164.1mm 21 notch back 17 notch back
*Data above are given for informational purposes.
*Settings vary with weather conditions.
*Setting should be made while checking the state of the machine.
*Settings vary with weather conditions.
*Setting should be made while checking the state of the machine.
SP125 Limited
22 Walker Wood, Baildon, Shipley, West Yorkshire, BD17 5BE, England
Telephone 01274 583231 steve@sp125racing.com Mobile 07738 626165
22 Walker Wood, Baildon, Shipley, West Yorkshire, BD17 5BE, England
Telephone 01274 583231 steve@sp125racing.com Mobile 07738 626165
SP125 Limited Disclaimer
Honda, HRC and all other parts supplied by the SP125 Limited are not guaranteed when used in competition events.
As such, it is a condition of our making all parts available that it is solely the decision of each individual, rider, team member or
team whether they choose to use any part supplied and in doing so, absolve the manufacturer and SP125 Limited of any or all
such claims, including damage to equipment and/or injury to personnel irrespective of how caused.
All parts remain property of SP125 Limited until paid for in full.
All 'special order' parts, that are ordered specially under the instruction of the customer, are non returnable and non refundable.
Honda, HRC and all other parts supplied by the SP125 Limited are not guaranteed when used in competition events.
As such, it is a condition of our making all parts available that it is solely the decision of each individual, rider, team member or
team whether they choose to use any part supplied and in doing so, absolve the manufacturer and SP125 Limited of any or all
such claims, including damage to equipment and/or injury to personnel irrespective of how caused.
All parts remain property of SP125 Limited until paid for in full.
All 'special order' parts, that are ordered specially under the instruction of the customer, are non returnable and non refundable.
