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Looking for fork length measurement (axle to top of fork) Please someone

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Wondering if someone can measure their fork length for me that has a trials bike (a modern bike), axle to top of fork. Im going to handbuild a trials bike, frame and swingarm, have all kinds of specs i found online and think i found some good forks i can use but dont know how long actual trials forks are?

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585mm ?

this is a measurement i found a while ago as i am planning a hand build frame as well 

are you going gas or electric ?

mine was going to be more of a trials / trails hybrid .  seat , bigger tank a bit more heavier duty forks ( honda xr100 comes to mined )

i was going to model mine similar to a gas gas ( round tube ) or a pre 2008 sherco ( rectangular tube similar to my kx )

 

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585mm is like 23'', seems too short.

This is drawn with CR/YZ/RM/KX 80/85 forks (33''), shock, hubs, brakes, axles, mounts (use a donor bike). Handbuilt frame and swingarm with a 140cc 4T pit bike engine. 10'' travel suspension (i think (as shown)). Should be 175 lbs or under. Drawn with 03 GG Pro specs.

80 85 140cc Trials Bike.jpg

80 85 140cc Trials Bike 2.jpg

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the lack of horsepower and torque of the 140cc pit bike motor might be an issue ?

you looking to do something similar to this below ?

 

 

 

 

chinese trials.jpg

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Whoa, yea almost. What is that bike called?

I built this RMZ with 146cc, 194 lbs wet, works well, power fine.

20170618_181251.jpg

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Think Ive settled on just using the 80/85 two stoke in it. Should make it in at 160 lbs.

85cc Trials Bike 2.jpg

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would be interesting to know weight of the rims and tires also

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I'd like to put taller suspension onto a trials bike, to make an ultimate exteme enduro bike for me.   2" taller and more 'trail friendly' than a typical trials bike is my goal.  I was thinking a front end from an 85, which would take care of the front of the bike.  My dilemma is the rear--how do I get the rear to go up 2"?  

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Yostfmx ,

picture I found a while ago you might be interested in 

 

IMG_1935.JPG

 

If you google trials bike frame geometry

a page from adventure rider pops up

with more info 

Edited by kxrob

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On 6/19/2017 at 11:29 PM, yostfmx said:

Wondering if someone can measure their fork length for me that has a trials bike (a modern bike), axle to top of fork. Im going to handbuild a trials bike, frame and swingarm, have all kinds of specs i found online and think i found some good forks i can use but dont know how long actual trials forks are?

 

tech_fork_oil_level.jpg

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so my above post measurement of 585mm to the axle centre wasn't to far off 

i don't know where sierra_rider got the measurement of 28.75" ( 730 mm ) 

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These might be if interest to some one 

the bare minimum idea of these really interest me 

 

 

67C776D2-263B-4967-91C2-0E43D6C2198A.jpeg

1C3771EA-F0DD-438E-B705-E1E304584991.jpeg

10DFD50E-7897-4757-81E0-23EF6AFA0050.jpeg

9F571C67-AC8C-44B5-8918-26100D6AE1CA.jpeg

E7FDC361-0CC8-4D23-930F-D890894D1A52.jpeg

91197AEA-F101-405B-BB11-9C0D0B0E1256.jpeg

50B6A080-A215-4D8B-BFDB-8127233811B5.jpeg

23B4483D-516C-446C-8420-1272EF517BDE.jpeg

D6E069E0-48A2-4847-9E20-A657C69A6CFB.jpeg

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