TRX250R.ORG
General => Projects => Topic started by: bholzgen on March 01, 2022, 06:44:07 AM
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Hey everyone! Its been many years since I have been active on this forum but I thought I would share a "250R" related project with you all. Here I will be documenting my 2002 Laeger's (250R Geometry) CRF450R hybrid. This is 1 of 7 CRF chassis that Mark Laeger produced before selling the remaining off for CT Racing to complete. The first 7 original chassis can be identified by the unique front motor mount. This bike specifically utilizes CR500 linkage and a Pro Trax MX width front end.
I must confess that if anyone has been following my DBC Racing social media pages this is not my first time putting this specific bike together. This winter I tore it down to address some minor issues as well as re-powder the frame, arms, and swingarm.
The shop that powder coated this for me in January of 2020 did a terrible job. Powder was majorly under-cured and it was chipping to hell pretty much as soon as the bike got ridden. So the old powder was chemically stripped and re-done by TLR Coatings here in Michigan.
This specific chassis utilizes all 250R components other than the motor, exhaust and carburetor (Yes I know I am stating the obvious!) Anyway, I hope you all enjoy the progress as I document the project on this thread. I hope you all can appreciate it even though its a four stroke power plant! ;D
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Welcome back Blake. I seen pics of this quad when you first got it. I’m looking forward to seeing updates on this thread.
Joe
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An updated shot with the arms, PWR radiator, Custom Axis Pro-Airs and RTC louvers installed. More photos to follow!
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Another progress photo:
Front bumper is on, as well as the protrax spindles. Additionally, the Rocket Machining and Design hubs are mounted up!
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Damn that looks good
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More progress photos:
Laeger's CR500 link swingarm is on (specific to CRF engine), Custom Axis rear shock, RPM race hub +4 axle, Billet Rocket Machining & Design front / rear hubs and the 2002 CRF450R powerplant. Will post photos of the engine build later, but here are the specs:
- Vapor blasted center cases, cylinder and head
- Matte black cerakote side covers and valve cover
- OEM crankshaft balanced and polished with new Carrillo rod
- ISO / REM finish transmission gears, shafts, collars, washers, forks, fork shafts, counter balancer, drive gears, etc.
- Full Hinson Clutch (Basket, Inner Hub, Pressure plate, & Clutch Pack)
- CP 14:1 High Comp Piston
- JH Racing Full CNC Port and 5 angle valve job
- Del West +1 Ti intake and exhaust valves
- CV4 Ti valve springs
- Crower custom grind camshaft
- Hinson billet engine plugs
- Dream billet water pump cover
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Very nice
Joe
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Here are a few photos of the Rocket Machining and Design front and rear billet hubs.
Similar to the Hardkor rear hubs (yes thats right Hardkor made rear hubs),
the rears utilize a splined stainless insert. A full billet rear hub with aluminum splines
will wear out overtime and develop some slop. The SS insert solves this issue.
See the 3rd photo for a look at the SS insert I am referring to.
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Here are a few photos of the Rocket Machining and Design front and rear billet hubs.
Similar to the Hardkor rear hubs (yes thats right Hardkor made rear hubs),
the rears utilize a splined stainless insert. A full billet rear hub with aluminum splines
will wear out overtime and develop some slop. The SS insert solves this issue.
See the 3rd photo for a look at the SS insert I am referring to.
Thanks for sharing the info on the rear hubs. I sold off my LSR rear hubs (all aluminum). I also sold a RPM set as it not fit the “Style” I was long for. I’m currently oem rears but I think those Rocket hubs are in my future.
Joe
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Nice looking build Blake, love seeing the hybrid since I don't know much about it!
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Thanks guys! Here is some photos of the engine components before I put it together.
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Some photos of the JH Racing port work: