[joe c]

hey tex, have you seen the laptimes for roper on his new and improved 350 aero at jennings??? he was 10 secs of the fastest pace of the 125's. i was looking at them with chris and that guy was just flying man. jb, can you post your url to the pics of the pipes and stuff like that again??

chris has been asking me about it.

later
jc

 

[texmawby]

did he put a 350cc motor in his bike, because he used to run a 250cc aermacchi?

whether or not, it's still damn fast!

i suck.

tex

 

[joe c]

no, hes riding the real deal 350 aero now i guess. i heard the guy he got second to, the guy on the r5 i think, #55, has almost 70 hp comming outta that thing and he claimed roper was all over him in the corners. and he only managed to beat dave by inches. if you look at his times on mylaps, he looks lilke he would have been really competitve in v6!

check out cyclenews.com chris was telling me about it.

jc

 

[jbranson]

Joe,
If you mean my little pathetic parts page...it's here:
http://www.jrbranson.com/BikeParts/CDR-Parts.htm

JohnnyB

 

[joe c]

yeah, i dug it out already. if you wanna see the laps aaron turned, check it using my account if you want.

i'll email over the info.


me

 

[jbranson]

Thanks bro, I'll check them out.
JohnnyB

 

[joe c]

yeah, it looks like roper was out embarressing everyone on the track again. did you see the cycle news article. spanked everyone on a aero at dayton which had been run in 18 years he claims. and judging by the photos, i dont doubt it! that thing had some old stickers on it and just looked old. pretty cool though.

jc

 

[texmawby]

yep, it's the real deal. i've seen that chassis and fairing was up at uch's before. i'm happy that he finally finished it after so many years. great, now david has a faster bike!

 

[joe c]

fortunately we wont have to deal with him at louden anymore!!! it shold show zach a thing or 2!!! whddya think zach?? roper on the real deal 350 in 350gp?

jc

 

[jbranson]

Why won't we have to deal with Roper at Loudon anymore....is he going somewhere?

JohnnyB

 

[texmawby]

no johnny, david isn't going anywhere. i think what joe means is that since the cb350's have been designated to formula cb instead of 350gp, that neither joe or i will be in competition with the rope (not that we were even remotely competitive before).

good luck zach and company in 350gp!

tex

p.s.- i do remember zach's first ride on pete's 350 at gunstock versus the rope. he really gave him hell!

 

[jbranson]

Well...I see what you mean then.

Sure whould have liked to see someone build a killer lightweight, good handling, real deal CB350 to run in 350gp.

I've never seen a group of people like the CB350 crowd that seems so oblivious to weight considerations. The typical CB350 race bike weighs 360+ lbs...that's crazy. My 200cc bike weighs about 205 right now. Can't tell me 125cc and another 8 hp requires an extra 160 lbs. I bet I could build a CB350 that weighed 260 lbs. No...I'm not going to do it...but bet I could.
I think the original CB350/350GP rules were written under the assumption that people would try to build real race bikes out of the CB's, that didn't seem to happen. Where's the custom frames (yes legal), where's the alloy wheels, alloy sprockets, glass tanks, smaller chains, mag ignitions. Hell, half of them seem to still have fully tabbed frames, starters (elec+kick), stock tanks, big ass seats, rear sets made out of re-bar, batteries big enough for a car, OEM exhaust clamps that weight a pound a piece.

Look at bikes like Talabach's Duc, it's not so fast just because of HP, it probably weighs 60 lbs less than most CB's.

Get with the program you guys, heck most of you are using tires big enough for a freakin 750. You got 30hp, put on some WM2s and little avons...well after you take 60lbs off the bike that is.

I wanna see one of the CBs in the FCB Class take second overall.
JohnnyB

 

[texmawby]

weight watchers anyone? o.k, here's the deal to all of you cb350 types that race at loudon. i know i won't do anything with my bike weight wise before may 20th (nor will joe), however your all welcome to do as such or otherwise. what i'm proposing is that we, collectively at the vintage celebration race take our bike over to the scales garage and weigh in, record our weights, then later that night we meet at a common location where johhny b. will scrutinize ways we can all drop pounds off our bikes. it should be informative as well as good for plain ole' shits and giggles.

it may become a meeting of minds, plus i'll bring my grinder!

any takers?

tex

 

[bfd]

I'm game.
I put it on the scale there a couple of years ago and it was 307lb if I remember correctly.
But sometimes I don't remember correctly.
bfd

 

[jbranson]

Bill,
Craig Hirko told me last year his bike was 365 lbs!!

A stock CB175 is about 300 lbs.

If your's is 307 lbs I'd say that's pretty light...but not light enough baby.

Tex...I'll bring a cutting torch.
JohnnyB

 

[bfd]

JohnnyB
It's certainly possible I'm underestimating but some old Cycle World-style review of the the bike in street trim was 375lb.
We put my BMW on the scale in the garage and it weighed about 375lb. That's about a 50lb weight savings over the street version with all the lights/electrics. It's likely I took the battery off, like a fat guy removing his shoes, before getting on the scale to sweeten the #.

Should be interesting to see again. Maybe during the next Hawk School.
bfd

 

[imslow]

I removed battery, starter shit, tabs, exhaust collars and put on new exhaust, smaller tires by pete T., glass seat, removed kick start mech., etc. Bikes gotta be less than 300, as i can heave it around myself. Alloy rims would help. and a glass tank, but the tank ain't so heavy in stock form, but the pounds do add up. But the engine blew upat Frontierland. Craig's bike did look heavy.

Someone tol dme once that if youhave to weigh something, and only have a bathroom scale, that if you put one end on the scale and lift the other end up, the scale will read one-half of the actaul weight of the object. JB, true?

scott

 

[texmawby]

scott,

how were you able to remove the battery? are you running a pvl ignition?

i would love to grind off excess tabs and such, but i gotta face the fact that i'm a lazy bastard, plus they provide great ancors for zip ties/electrical wires.

if i could get some new header pipes, that i figure would save at least five pounds.

tex

 

[FR]

When I weigh my racebikes, I place a 2x6 on the garage floor next to the bathroom scale, roll the bike on so that both wheels are on the 2x6, roll the front wheel onto the scale, then either reposition the scale or flip the bike around and roll the rear wheel on to the scale. This make it easier to get it on the scale, and helps to keep the weight bias accurate front to rear.

FR

 

[jbranson]

Scott,

What FR said.

JohnnyB