Shop Manual Misprint '25 Fork Preload Range?

g3green

Registered
Hey all,
New busa owner setting up SAG.
Currently my front fork rider sag is 51mm @ 4.3mm preload (190lb rider+gear) so turned to my manual and it seems to say the adj range is 4mm to 10mm but below that are three pictures ranging from 4mm to 14mm?
Am I missing something?
My front end is soft and diving when under heavier braking. Zip tie is about 30mm from bottom casting. Top out is 127mm - 120mm stroke seems to leave me another 20mm before bottoming out unless my math is off.
Rear rider sag is 28mm
Looks to me that the beast is sprung too light for me. I don't have a spanner as yet to adj the rear preload.

fork preload range.jpg
 
Pushed the Zip Tie up to the bottom of the seal and measured from the top of the seal (bottom of fork outer tube) and got 26mm with me on the bike. Repeated after 4 full turns in to stiffen preload and got 26mm again?

I previously miss-measured from below the adj nut instead of top of the nut so I had some room
I am now maxed out stiffness measuring 4mm as shown in diagram. I would have thought 4 turns would have made some difference
 
At 190lbs, plus gear, if you have full gear, you are talking ballpark 20 lbs, and much over 200 lbs total, the fork springs are done.
The sag should be 30-35mm for ideal handling, which will be on the firm side.
 
And are you lifting the front and rear off of the ground completely, with the front on a forklift stand(supported under lower triple-clamp), and the rear off of the swingarm stand, either with a metal rod through the frame supported by jackstands, manually lifted up by someone while you measure, or on a Bursig or Skylift stand?
Then back on the ground with you or someone your weight sitting on it?
 
Yes, I have the "top out" numbers (Wheels off the ground leveraged on side stand), static sag and rider sag

I am 190 lbs including gear.
Total front with top out = 127mm less the 120mm travel gives me 7mm above the fork axle casting as bottom out. I put a mark there. The Zip Tie is about 10mm above bottom out on the last ride which was pretty easy with no heavy braking.

Can anyone confirm my top out and bike sag numbers for a stock '25?
Would be helpful to get someone elses numbers who is 190-200 lbs.

Measuring from the axle casting / leg joint, to the top of the fork seal where it meets the fork tube.
Top Out: 127mm
Bike Sag: 90mm
Rider Sag: 76mm

Current settings are Front:
Rider Sag: 51mm
PreLoad: 10 turns out
Rebound: 8 clicks out
Comp: 1 turn out

Rear:
Bike Sag: 9mm
Rider Sag: 28mm
I haven't touched the rebound yet and I can't move the preload collar. What a stupid preload setup for a $27K bike, not even a simple slip ring on top of the coil to make adj easier instead of having to carve all the powder coating off the spring, or a wider collar.

IMG_3887.jpg
 
Yes, I have the "top out" numbers (Wheels off the ground leveraged on side stand), static sag and rider sag

I am 190 lbs including gear.
Total front with top out = 127mm less the 120mm travel gives me 7mm above the fork axle casting as bottom out. I put a mark there. The Zip Tie is about 10mm above bottom out on the last ride which was pretty easy with no heavy braking.

Can anyone confirm my top out and bike sag numbers for a stock '25?
Would be helpful to get someone elses numbers who is 190-200 lbs.

Measuring from the axle casting / leg joint, to the top of the fork seal where it meets the fork tube.
Top Out: 127mm
Bike Sag: 90mm
Rider Sag: 76mm

Current settings are Front:
Rider Sag: 51mm
PreLoad: 10 turns out
Rebound: 8 clicks out
Comp: 1 turn out

Rear:
Bike Sag: 9mm
Rider Sag: 28mm
I haven't touched the rebound yet and I can't move the preload collar. What a stupid preload setup for a $27K bike, not even a simple slip ring on top of the coil to make adj easier instead of having to carve all the powder coating off the spring, or a wider collar.

View attachment 1697754
Buy the brass shock collar punch and spanner from Motion Pro. You'll thank me.

 
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