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Author Topic: preload, sag on DRZ  (Read 381 times)

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Offline Poffmuis

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preload, sag on DRZ
« on: June 23, 2008, 11:38:52 am »
Anybody know what how many mm sag I should setup when I sit on the bike? (also tell me which points you are using to measure?) I have searched the google internet machine, but no luck in finding. What I do know is that my suspension is definitely too soft at the back.
 

Offline lecap

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Re: preload, sag on DRZ
« Reply #1 on: June 23, 2008, 02:19:39 pm »
Rear suspension travel is usually measured from the axle to a point on the frame vertically above.
Static sag loaded with rider should be some 30% of maximum suspension travel. Easiest to get someone with a tape measure to help. Correct rear static sag can be more (up tpo 50%) on MX and Enduro bikes facilitated by progression of resulting spring rate esp. if the bike does not have to cope with add on loads like passengers & luggage. A fully loaded two up bike will most of the time also sit around 50% static sag.
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Offline Herms

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Re: preload, sag on DRZ
« Reply #2 on: June 23, 2008, 02:35:38 pm »
How would you determine the max travel distance? I can put my Djebel on a centre stand and measure the distance from axle to a point on the frame. I take it of the stand and sit on the bike, and take a new measurement.

What now? I still do not know 30% of what distance it must be.

Any suggestions?

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Offline letsgofishing

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Re: preload, sag on DRZ
« Reply #3 on: June 23, 2008, 02:37:26 pm »
There is nothing you can do about the past and you can't predict the future...all you have is the now...live it to the fullest.

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Offline lecap

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Re: preload, sag on DRZ
« Reply #4 on: June 24, 2008, 12:26:39 pm »
How would you determine the max travel distance? I can put my Djebel on a centre stand and measure the distance from axle to a point on the frame. I take it of the stand and sit on the bike, and take a new measurement.

What now? I still do not know 30% of what distance it must be.

Any suggestions?



From www.suzuki.co.za:

DR200SE DIMENSIONS AND DRY MASS

Overall Length: 2150 mm (84.7 in)
Overall Width: 805 mm (31.7 in)
Overall Height: 1185 mm (46.6 in)
Wheelbase: 1405 mm (55.3 in)
Ground Clearance: 260 mm (10.2 in)
Seat Height: 810 mm (31.9 in)
Dry Mass: 113 kg (249 lbs)

ENGINE

Type: 4-stroke, air-cooled, OHC
Number of Cylinders: 1
Bore: 66.0 mm (2.598 in)
Stroke: 58.2 mm (2.291 in)
Displacement: 199 cm3 (12.1 cu. in)
Compression Ratio: 9.4 : 1
Carburettor:  MIKUNI BST31SS, single
Air Cleaner: Polyurethane foam element
Starter System: Electric and kick
Lubrication System: Wet sump
Idle Speed: 1 500 ± 100 r/min

DRIVE TRAIN

Clutch: Wet multi-plate type
Transmission: 5-speed constant mesh
Gearshift Pattern:  1-down, 4-up
 
Primary Reduction Ratio:  3.157 (60/19)
Low Gear Ratio: 3.000 (33/11)
2nd Gear Ratio: 1.933 (29/15)
3rd Gear Ratio: 1.437 (23/16)
4th Gear Ratio: 1.095 (23/21)
Top Gear Ratio: 0.913 (21/23)
Final Reduction Ratio: 3.916 (47/12)
Drive Chain: DID520V, 112 links

CHASSIS

Front Suspension: Telescopic, coil spring, oil damped
Rear Suspension: Link type, coil spring, oil damped
Front Fork Stroke: 205 mm (8.1 in)
Rear Wheel Travel: 205 mm (8.1 in)

Caster: 29°
Trail: 112 mm (4.4 in)
Turning Radius: 2.3 m (7.5 ft)
Steering Angle: 43° (right & left)
Front Brake: disc brake
Rear Brake: Drum brake
Front Tire Size: 70/100-21 44M tube type
Rear Tire Size: 90/100-18 54M tube type

ELECTRICAL

Ignition Type: Electronic ignition (CDI)
Ignition Timing: 7° B.T.D.C. at 1 500 rpm
Spark Plug: NGK DR8EA or DENSO X24ESR-U
Battery: 12V 21.6 kC (6 Ah) 10 HR
Generator: Three-phase A.C. generator
Fuse: 20A
Headlight: 12V 60/55W
Turn Signal Light : 12V 15W
Brake light/Taillight: 12V 21/5W
Speedometer Light: 12V 1.7W
Neutral Indicator Light: 12V 2W
High Beam Indicator Light: 12V 2W
Turn Signal Indicator Light: 12V 2W

CAPACITIES

Fuel Tank, with Reserve: 13.0 L (3.4/2.9 US/Imp gal)
Reserve:  2.5 L (0.7/0.5 US/Imp gal)
Engine Oil, Oil Change:  950 ml (1.0/0.8 US/Imp qt)
Engine Oil, Filter Change:  1050 ml (1.1/0.9 US/Imp qt)
Engine Oil, Overhaul:  1200 ml (1.3/1.1 US/Imp qt)
 
 
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Offline lecap

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Re: preload, sag on DRZ
« Reply #5 on: June 24, 2008, 12:29:19 pm »
DR-Z 400 E suspension travel, same source:

Front Fork Stroke: 288 mm (11.3 in)
Rear Wheel Travel: 295 mm (11.6 in)
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Offline Poffmuis

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Re: preload, sag on DRZ
« Reply #6 on: June 24, 2008, 04:19:09 pm »
DR-Z 400 E suspension travel, same source:

Front Fork Stroke: 288 mm (11.3 in)
Rear Wheel Travel: 295 mm (11.6 in)


 :o wow, I cant remember the specs for the rear travel being that much. Thanks