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The Beast CRF/LTR Hybrid

144K views 607 replies 62 participants last post by  amcf18  
#1 ·
Image
 
#2 ·
Word!
 
#3 ·
I can tell already its gonna be a fun build!
 
#4 ·
Nice! Better post videos when its done!
 
#11 ·
#9 ·
Oh yeah
 
#17 ·
I want to see what kind of horsepower increase. Since this motor is powerful on a dirt bike (300lbs?) I hope another 100lbs, and pulling a heavy a$$ axle and two rims and tires doesn't rob it of its power?
 
#18 ·
Don't forget that he also looses weight due to the battery, efi, starter, and lights being removed!
 
#23 ·
Me too but I've been waiting to see if somebody would do a frame swap for one that was already set up for a crf motor but it hasn't gone through yet so I've been accumulating parts and tonight i thought i would start.
 
#28 ·
Honestly i can't put a time frame on it, either once school starts i'll be working on it more or less.

Its the hot setup these days in the hybrid world. Walsh is charging a fortune for his frames with ltr geometry and mounts for a CRF motor. First one was done in France if I recall correctly. It takes some major surgery in the rear to get it all to work.
Before you start cutting and especially before you start welding make sure you put that frame in a jig or else it can tweak quite a bit from all the heating and cooling. You could possibly pull it out of square by alot if you don't. I would use square tubing for the jig and tack weld the frame to it in at least 4 or 6 places.

Hey I see a harbor fright ATV lift in that photo lol. Man I love that place.
I'll have to make sure it doesn't tweak, thanks for the heads up!

Yep my girlfriend got that for me for Christmas sure does come in handy, i needed to modify it a bit because it cant reach across my quad with the nerf bars on it. Also what i need is a HF stool because i'm tired of using a tire.
 
#27 · (Edited)
Its the hot setup these days in the hybrid world. Walsh is charging a fortune for his frames with ltr geometry and mounts for a CRF motor. First one was done in France if I recall correctly. It takes some major surgery in the rear to get it all to work.
Before you start cutting and especially before you start welding make sure you put that frame in a jig or else it can tweak quite a bit from all the heating and cooling. You could possibly pull it out of square by alot if you don't. I would use square tubing for the jig and tack weld the frame to it in at least 4 or 6 places.

Hey I see a harbor fright ATV lift in that photo lol. Man I love that place.
 
#30 ·
the next race is august 16th i think. then the 29th