Need help with Rock Shox TORA 289
12-16-09, 07:50 PM
#1
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Location: Gainesville, FL
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Need help with Rock Shox TORA 289
Hey Guys,
Need some help. I am overhauling my brothers trek and it has the TORA 289. The shock bottoms out fairly easy. And I can't figure out to adjust it. I can see the Travel adjustment, but I don't need that. Can anyone offer any help on how to pump this shock up? or tighten it? I'm not sure which I need to do. I tried D/L'ing the Manual but that was for a number of different forks and I couldnt make sense of it.
Appreciate it.
Need some help. I am overhauling my brothers trek and it has the TORA 289. The shock bottoms out fairly easy. And I can't figure out to adjust it. I can see the Travel adjustment, but I don't need that. Can anyone offer any help on how to pump this shock up? or tighten it? I'm not sure which I need to do. I tried D/L'ing the Manual but that was for a number of different forks and I couldnt make sense of it.
Appreciate it.
12-16-09, 10:11 PM
#2
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Could be an issue with the rebound damper, with the seals rather. If the shock is bottoming out when it is at full travel then there may be something wrong with the travel adjustment/spring. Is the fork topping out too? If it is you need to replace the damper.
12-17-09, 05:39 AM
#4
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12-17-09, 08:44 AM
#5
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I pretty sure that the 289 is a coil fork. If you've maxed out the preload and are still having problems you most likely need a heavier sring.
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12-17-09, 09:42 AM
#6
Senior Member
2007 Tora 289 U-Turn/Coil
Travel 85-130mm / 80 or 100mm
Travel Adjust U-Turn / N/A
Target Weight* 2360 g (5.2 lbs)
Spring Coil
Spring Adjust Change Spring / Preload
Damping Rebound
Damping Adjust External Rebound
Lowers Magnesium, IS Disc Mount, Boss Option
Crown Forged, Hollow 6061 T-6 Aluminum
Steerer Tube Steel
Upper Tubes 32mm STKM Steel
Standard Colors Black, Diffusion Black, Diffusion Silver
Options Aluminum Steerer. Optional Spring Rates: Light, Firm, Extra Firm
Upgrade
SETTING SAG
RockShox forks are designed to sag when you are sitting on your bike. Sag is the
compression of the fork caused by the rider's weight. Proper sag allows the front
wheel to follow the contour of the terrain as you ride.
To measure sag, set the fork to maximum travel. Install a zip tie on the upper tube of the
fork flush against the wiper seal. Sit on the bike with normal riding apparel. Step off the
bike, and measure the distance between the wiper seal and the zip tie. This is your sag.
The sag should be between 15 and 25 percent of maximum travel. If you're unable to
achieve optimum sag you may need to change the fork's air pressure (Solo Air), spring
(U-Turn Coil) or preload (Coil).
Use the tuning information below to assist in proper set up of your fork.
PRELOAD ADJUSTMENT
*Turning the adjuster clockwise increases spring preload (i.e.,stiffening the spring),decreasing sag.
*Turning the adjuster counterclockwise decreases spring preload,increasing sag. fork only with disc style brakes mounted
COIL SPRING TUNING
Changing the Spring Rate
Spring rate is the amount of force needed to compress a spring one inch. Changing
your fork's coil spring for a spring of a higher or lower rate will alter the overall feel of
your fork. Higher spring rates make the fork feel more "stiff", while lower spring rates
make the fork more "supple". Contact your local RockShox dealer to order
replacement springs.
NOTE: WHEN DECREASING TRAVEL (SEE U-TURN TRAVEL ADJUST), YOU INCREASE THE SPRING RATE.
TRAVEL ADJUSTMENTS
IMPORTANT: STOP TURNING THE U-TURN ADJUSTER KNOB AFTER YOU'VE REACHED MAXIMUM TRAVEL.
TURNING THE KNOB PAST THIS POINT MAY CAUSE DAMAGE TO THE U-TURN FEATURE.
NOTE: ENSURE THE FORK IS COMPRESSED ONCE AFTER SITTING FOR MORE THAN A DAY AND IN OPEN
POSITION BEFORE TRAVEL ADJUSTMENT.
Coil U-turn Travel Adjust (Recon, Tora)
U-Turn forks offer 45mm of travel adjustment (Recon/Tora: 85 to 130mm). To determine the travel
on your fork, use the travel gradients on the upper tube (except Tora).
Turning the U-turn adjuster knob counterclockwise increases travel. Each turn increases or
decreases the travel by 7.5 mm.
Changing Travel (Recon and Tora)
To change the travel of your fork (Recon and Tora: 80, 100 or 130) you must perform a
full service on your fork. To obtain service information or instructions, visit our website
at www.rockshox.com or contact your local RockShox dealer or distributor.
REBOUND DAMPING
External Rebound Adjustment
Rebound damping controls the speed at which a fork returns to its full extension
following compression. Located at the bottom of the right fork leg is the rebound
adjuster knob. Turning the adjuster in the direction indicated by the "rabbit" on the
rebound speed decal decreases rebound damping, causing the fork to return to full
extension faster. Turning the adjuster in the direction indicated by the "turtle" increases
rebound damping, slowing the return of the fork to full extension.
Excessive rebound damping will cause the fork to "pack up" over successive bumps,
reducing travel and causing the fork to bottom out. Set your fork to rebound as fast as
possible without "topping out" or kicking back. This allows your fork to follow the
contours of the trail, maximizing stability, traction and control.
COMPRESSION ADJUSTMENT(FIG. 3)
Some fork models also feature adjustable compression damping. Increased compression
decreases fork movement in the Open position. Compression adjustment can be used to
help combat brake dive and "squatting" under hard cornering.
For crown activated forks, compression damping increases to Lock as the crown-
mounted actuator rotates 90 degrees clockwise. Position the actuator anywhere within
the range from Open to Lock to suit the desired level of compression damping.
Forks equipped with the PopLoc Adjust provide compression damping adjustment for
the Open position. Turning the blue adjuster on the PopLoc adjust clockwise
increases compression damping for the Open position. The PopLoc lever features
gradients to help illustrate the current level of compression. Eight complete turns of
adjustment are provided.
TIP: ADJUSTING COMPRESSION ON FORKS EQUIPPED WITH POPLOC ADJUST IS BEST DONE WITH THE FORK IN
LOCK POSITION.
NOTE: THE COMPRESSION SETTING DOES NOT ADVERSELY EFFECT YOUR FORK'S PERFORMANCE OVER HIGH
SPEED IMPACTS.
Travel 85-130mm / 80 or 100mm
Travel Adjust U-Turn / N/A
Target Weight* 2360 g (5.2 lbs)
Spring Coil
Spring Adjust Change Spring / Preload
Damping Rebound
Damping Adjust External Rebound
Lowers Magnesium, IS Disc Mount, Boss Option
Crown Forged, Hollow 6061 T-6 Aluminum
Steerer Tube Steel
Upper Tubes 32mm STKM Steel
Standard Colors Black, Diffusion Black, Diffusion Silver
Options Aluminum Steerer. Optional Spring Rates: Light, Firm, Extra Firm
Upgrade
SETTING SAG
RockShox forks are designed to sag when you are sitting on your bike. Sag is the
compression of the fork caused by the rider's weight. Proper sag allows the front
wheel to follow the contour of the terrain as you ride.
To measure sag, set the fork to maximum travel. Install a zip tie on the upper tube of the
fork flush against the wiper seal. Sit on the bike with normal riding apparel. Step off the
bike, and measure the distance between the wiper seal and the zip tie. This is your sag.
The sag should be between 15 and 25 percent of maximum travel. If you're unable to
achieve optimum sag you may need to change the fork's air pressure (Solo Air), spring
(U-Turn Coil) or preload (Coil).
Use the tuning information below to assist in proper set up of your fork.
PRELOAD ADJUSTMENT
*Turning the adjuster clockwise increases spring preload (i.e.,stiffening the spring),decreasing sag.
*Turning the adjuster counterclockwise decreases spring preload,increasing sag. fork only with disc style brakes mounted
COIL SPRING TUNING
Changing the Spring Rate
Spring rate is the amount of force needed to compress a spring one inch. Changing
your fork's coil spring for a spring of a higher or lower rate will alter the overall feel of
your fork. Higher spring rates make the fork feel more "stiff", while lower spring rates
make the fork more "supple". Contact your local RockShox dealer to order
replacement springs.
NOTE: WHEN DECREASING TRAVEL (SEE U-TURN TRAVEL ADJUST), YOU INCREASE THE SPRING RATE.
TRAVEL ADJUSTMENTS
IMPORTANT: STOP TURNING THE U-TURN ADJUSTER KNOB AFTER YOU'VE REACHED MAXIMUM TRAVEL.
TURNING THE KNOB PAST THIS POINT MAY CAUSE DAMAGE TO THE U-TURN FEATURE.
NOTE: ENSURE THE FORK IS COMPRESSED ONCE AFTER SITTING FOR MORE THAN A DAY AND IN OPEN
POSITION BEFORE TRAVEL ADJUSTMENT.
Coil U-turn Travel Adjust (Recon, Tora)
U-Turn forks offer 45mm of travel adjustment (Recon/Tora: 85 to 130mm). To determine the travel
on your fork, use the travel gradients on the upper tube (except Tora).
Turning the U-turn adjuster knob counterclockwise increases travel. Each turn increases or
decreases the travel by 7.5 mm.
Changing Travel (Recon and Tora)
To change the travel of your fork (Recon and Tora: 80, 100 or 130) you must perform a
full service on your fork. To obtain service information or instructions, visit our website
at www.rockshox.com or contact your local RockShox dealer or distributor.
REBOUND DAMPING
External Rebound Adjustment
Rebound damping controls the speed at which a fork returns to its full extension
following compression. Located at the bottom of the right fork leg is the rebound
adjuster knob. Turning the adjuster in the direction indicated by the "rabbit" on the
rebound speed decal decreases rebound damping, causing the fork to return to full
extension faster. Turning the adjuster in the direction indicated by the "turtle" increases
rebound damping, slowing the return of the fork to full extension.
Excessive rebound damping will cause the fork to "pack up" over successive bumps,
reducing travel and causing the fork to bottom out. Set your fork to rebound as fast as
possible without "topping out" or kicking back. This allows your fork to follow the
contours of the trail, maximizing stability, traction and control.
COMPRESSION ADJUSTMENT(FIG. 3)
Some fork models also feature adjustable compression damping. Increased compression
decreases fork movement in the Open position. Compression adjustment can be used to
help combat brake dive and "squatting" under hard cornering.
For crown activated forks, compression damping increases to Lock as the crown-
mounted actuator rotates 90 degrees clockwise. Position the actuator anywhere within
the range from Open to Lock to suit the desired level of compression damping.
Forks equipped with the PopLoc Adjust provide compression damping adjustment for
the Open position. Turning the blue adjuster on the PopLoc adjust clockwise
increases compression damping for the Open position. The PopLoc lever features
gradients to help illustrate the current level of compression. Eight complete turns of
adjustment are provided.
TIP: ADJUSTING COMPRESSION ON FORKS EQUIPPED WITH POPLOC ADJUST IS BEST DONE WITH THE FORK IN
LOCK POSITION.
NOTE: THE COMPRESSION SETTING DOES NOT ADVERSELY EFFECT YOUR FORK'S PERFORMANCE OVER HIGH
SPEED IMPACTS.
12-17-09, 03:28 PM
#7
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Location: Melbourne, Australia
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As stated, if it's bottoming out THAT easily, you most likely need a new, heavier (stiffer) spring.
