2002 Laeger's 250R Based Hybrid

[bholzgen]

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! 

[croat1]

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

[bholzgen]

An updated shot with the arms, PWR radiator, Custom Axis Pro-Airs and RTC louvers installed.  More photos to follow!

[bholzgen]

Another progress photo:

Front bumper is on, as well as the protrax spindles.  Additionally, the Rocket Machining and Design hubs are mounted up!

[2ndmoto]

Damn that looks good

[bholzgen]

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

[croat1]

Very nice

Joe

[bholzgen]

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. 

[croat1]

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

[havinnoj]

Nice looking build Blake, love seeing the hybrid since I don't know much about it!

[bholzgen]

Thanks guys! Here is some photos of the engine components before I put it together.

[bholzgen]

Some photos of the JH Racing port work: