[ACDNate]

I raced a somewhat built CRF100F last year with GAMRA (www.gamra.us).

In it's current form, with 1986 CR80 front end, 17" Excel's front and rear with buchannan spokes on stock hubs, BBR shock spring, still working on front, and removed airbox. This bike has been great fun.

This year I've added a new bike to the stable via a few horse trades.


It's a 2007 150R. The first step of the build is happening now. The bike is at the shop getting the RB swingarm put on, courtesy of the swingarm recall.

Once it's back here's the general plan to get it on the track:

Rad Mfg 17" wheels with econo hubs and heavy duty spokes. 2.5" front 3.5" rear
Dunlop GP 125 soft compound slicks
Shock will get mailed out to Cogent Dynamics for a revalve and new Racetech Spring
Fork springs from Racetech (may end up with re-valve on forks as well)
Front brake upgraded with oversized rotor, CRF250/450 Brake system with Applied Racing Bracket
Radiator braces (not sure from whom yet)
Aluminum handguards
Axle sliders (likely SME)
Catch Can (again likely SME)

The above will let me get it to the track and figure out where to go from there.

I really want to end up with a slipper clutch. I've ridden one setup with a Hinson and instantly fell in love with the slipper. I'll also likely get the water pump swapped out to Boyesen Super Cooler setup. The same bike with the slipper has been running for 3 race seasons without touching the topend, and he isn't babying the bike, so I figure the improved cooling must have some role in that.

If anyone has any other suggestions please share.

[crfsonly]

nice project. on the slipper clutch, in my opinion it's a must! i have a supermoto 450R without one and it's the next thing on my list to get. at speed backing it in a turn it's flat out dangerous without a slipper clutch. the backend will start hopping and at that point it's nearly impossible to hold your speed or your line. some with mad supermoto skills don't need a slipper to back it in but most still have one and those, like me, just getting into it benefit greatly from one.

i think your list sounds good. i'm assuming you will be getting all the necessary sliders and fluid catch cans?

btw, here's a photo of my 450R:

http://www.crfsonly.com/forum/viewtopic.php?t=23808



let us know if you need any help sourcing products.

ken

[ACDNate]

Oh i'm definitely going to town on sliders. Front and rear axle along with some on the handguards. And the catch can is a must to get through tech inspection at pretty much every track, big and small.

As far as sourcing parts, you all have a pretty good selection of the things I need. I'm still hunting around doing price comparisons, particularly on the more expensive bits. I'll be putting together an order with you all very soon. End goal is getting it rolling for around $1500 not counting a slipper clutch. The day dreamer in me keeps hoping I'll stumble across a slightly used one on the cheap

I don't think i'd even try to sumo a 450 w/o the slipper. That's a whole lot of power and takes a whole lot of skill to keep in check. Actually that's the last thing I traded to get the 150R, of course it was still in dirt form and older.

[crfsonly]

regarding the 450R sumo...lets just say i learned the hard way that it's a handful without a slipper clutch. that picture was taken after i learned that lesson and was forced to install new plastics and graphics.

[ACDNate]

Hahaha you aint racing if you don't ever crash

Question for you regarding a couple of parts on the store side of the site.

Galfer rear brake lines. Are these sized to work with RB's as well as R's? They are listed as "150R"

The oversized brake rotor part#OS-FB-ROTOR. Who's that made by?

Also in terms of slipper clutches, any input on Hinson vs STM CEB?

[crfsonly]

brake lines are the same for the R and RB according to Galfer. so on an R model there's probably more slack.

EBC makes the rotor for us. you wouldn't believe what we have to go through to get those.

on the slippers, like most things of this nature, camps are split on which is better. we've sell both as a result of no clear winner. i'll be putting in a hinson once i save enough pennies.

ken

[ACDNate]

Strange? Wonder what the big deal with doing an oversized rotor for the 150 is???

I'm leaning towards the Hinson, but only because it's the only one I've been able to ride and the guy who owns it would be able to offer easily accessible assistance if I run into anything odd during setup.

[crfsonly]

the issue with the rotor is they don't want to supply it without the bracket. the cost with the bracket is too much for just a replacement rotor. so back and forth we go.

you won't be disappointed with the hinson.

ken

[ACDNate]

Ah that explains it. But who is going to jump the rotor size and not swap to a 250/450 setup when they are a dime a dozen, leaving the EBC bracket as a paper weight.

[crfsonly]

Ah that explains it. But who is going to jump the rotor size and not swap to a 250/450 setup when they are a dime a dozen, leaving the EBC bracket as a paper weight.

EXACTLY! an expensive paper weight.

[ACDNate]

I'm going to use the Applied Racing(AR) dual piston brake relocator bracket for an oversized rotor.

I understand the 04-06 CRF250/450 calipers are reccomended by AR.

Aren't there a few other models/years that are the same calipers? Like the CR125/250?

Also, AR doesn't mention using the 250/450 master cylinder. Are the Master cylinders for the 250/450 the same as the 150R?

[crfsonly]

I'm going to use the Applied Racing(AR) dual piston brake relocator bracket for an oversized rotor.

I understand the 04-06 CRF250/450 calipers are reccomended by AR.

Aren't there a few other models/years that are the same calipers? Like the CR125/250?

Also, AR doesn't mention using the 250/450 master cylinder. Are the Master cylinders for the 250/450 the same as the 150R?

the honda part number for the caliper you need is:

45150-MEN-006

i know this i the caliper on the '04-06 CRF250/CRF450 models. you can find them at our OEM parts website at www.yeltrik.com

as far as the master cylinder, you can use the stock and it works well with the crf150r. the 250/450 master cylinder can apply a bit too much braking power for a younger and lighter rider that might grab a handful in certain situations. for a heavier adult with more braking control the 250/450 master would work well.

ken

[ACDNate]

250/450 caliper and master it is then

I'm what you would call a "heavier adult", weighing in at 240lbs with leathers and helmet on.

[crfsonly]

i would set it up with the stock master first to get a feel for the braking power and then if it's not enough swap to the 250/450 version.

ken

[ACDNate]

Got the 150R back from the dealer with my shiny new RB swingarm this weekend. Unfortunatly the my 100 kept me busy this weekend and I didn't get a chance to start tearing the 150 apart.

I'll get rolling tonight on the tear down, so I can get my suspension sent out to the Racetech guy.