Fork Diameter

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thumper580
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Joined: Wed Jul 12, 2017 3:34 pm
Location: Virginia

Fork Diameter

#1 Post by thumper580 » Wed Aug 23, 2017 2:52 pm

Anyone know the inside diameter of the front fork tubes? Looking at installing emulators. Thanks.

rd84
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Re: Fork Diameter

#2 Post by rd84 » Wed Aug 23, 2017 9:55 pm

Brook Suspension told me they need the diameter of the damper rod - I'm going to get this
measured up at the weekend - I'll post the results - Cheers Paul

rd84
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Re: Fork Diameter

#3 Post by rd84 » Wed Aug 23, 2017 9:57 pm

If you check my question in the Emulator thread Racetech supply emulators and there is a URL link - Cheers Paul

Ron57
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Re: Fork Diameter

#4 Post by Ron57 » Thu Aug 24, 2017 4:11 am

Hi The damper rod measured at 28.7mm. I'm using race tech in my KR RZ500 work really well
specially braking into bumpy corners.
Cheers Ron.

rd84
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Re: Fork Diameter

#5 Post by rd84 » Thu Aug 24, 2017 9:27 am

That's great Ron - thanks very much - saves me a job

Cheers
Paul

rd84
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Re: Fork Diameter

#6 Post by rd84 » Sat Aug 26, 2017 9:27 am

Thought I'd check the manual and take some measurements in case my suspension guy needs more information....

Just for the record by measurement and from the manual..

Springs 28.55mm diameter 498mm long limit 493mm long
Stroke 140mm
K1 0 to 95mm 0.79kg/mm
k2 95 to 115mm 1.04 kg/mm
k3 115 to 140mm 2.45kg/mm

Oil Capacity 300cm3 SAE 5W

Weight of Bike with Full Fuel Tank 205kg

Fork Tubes - measured at the top thread
Outside diameter 37mm (Thought they were supposed to 37mm ??- not much greater diameter further down ??)
Inside diameter 29.6mm

Damper Rod
28.68mm diameter for 14.9mm at the top
17.48mm diameter for 223.5mm at the bottom
Total length 238.4mm

Cheers
Paul
Last edited by rd84 on Sat Aug 26, 2017 9:55 pm, edited 1 time in total.

thumper580
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Location: Virginia

Re: Fork Diameter

#7 Post by thumper580 » Sat Aug 26, 2017 5:28 pm

Perfect....thanks guys.

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