Author Topic: Motorcycle: Front Brake required?  (Read 5431 times)

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Offline tylerm

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Motorcycle: Front Brake required?
« on: October 26, 2012, 10:58:51 PM »
I have a couple LSR bikes I have run at Speed Week the last few years, and I want to bring one (or both) of them to some ECTA meets in 2013. Neither has a front brake. Is one required to race at Wilmington? How long is the shut down? I couldn't find a course map on the ECTA website. Thanks in advance!

- Tyler

Offline 55chevr

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Re: Motorcycle: Front Brake required?
« Reply #1 on: October 27, 2012, 07:56:38 AM »
Tyler --- What class does the bike race in ...


Joe

Offline WOODY@DDLLC

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Re: Motorcycle: Front Brake required?
« Reply #2 on: October 27, 2012, 09:26:09 AM »
All models are wrong, but some are useful! G.E. Box (1967) www.designdreams.biz

Offline 55chevr

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Re: Motorcycle: Front Brake required?
« Reply #3 on: October 27, 2012, 09:38:04 AM »
Tyler.
The short answer is that over 175 mph front brakes are required.

Joe

Offline Stainless1

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Re: Motorcycle: Front Brake required?
« Reply #4 on: October 27, 2012, 11:31:28 AM »
We ran 189 at the Texas Mile with the 1000 in 05... in Bonneville trim... too much weight, no front brake...  made for a nice blue back brake after it cooled enough that you couldn't feel it from a foot or so away.  Rob was only in the dirt a couple of times  :-o
I would suggest putting on the front brake for any of the mile events.
Stainless
Red Hat 228.039, 2001, 65ci, Bockscar Lakester #1000 with a little N2O

Offline 55chevr

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Re: Motorcycle: Front Brake required?
« Reply #5 on: October 27, 2012, 11:58:48 AM »
From AirNav;

"Runway 4R/22L
 Dimensions:  9000 x 150 ft. / 2743 x 46 m
 HAS 200 FT PAVED AREA EACH END.
 Surface:  concrete/grooved, in fair condition "

The starting line is right at the north end of runway. The mentioned 200' run off apron is staging area. Timing is the last 132' of the mile. There is .704 mile of shutdown plus the 200' runoff apron.

If you want to see an aerial view;
 https://maps.google.com/maps?hl=en&q=wilmington+airpark+ohio&bav=on.2,or.r_gc.r_pw.r_qf.&bpcl=35466521&biw=1786&bih=874&wrapid=tlif135135341407510&um=1&ie=UTF-8&sa=N&tab=wl

Offline panic

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Re: Motorcycle: Front Brake required?
« Reply #6 on: October 27, 2012, 03:32:52 PM »
Full width drum vs. disc:
Drum has inherently stronger wheel with shorter spokes, narrower aero profile, no parasitic drag
Disc needs less contact area for the same BTU dump (higher pressure), faster cooling of fraction surfaces, only some calipers can be completely floated for no-drag in release mode

Offline tylerm

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Re: Motorcycle: Front Brake required?
« Reply #7 on: October 29, 2012, 10:27:30 PM »
Thanks guys. The SCTA classes are 750cc A-VG and 1350 cc A-VF. The 750 (1955 Triumph) has no front brake, drum rear. Ran 120.9 at Bonneville.. so far. The 1350 is a dual-engine 1955 Triumph, no front brake, disc rear. Ran 129 mph so far, only have 12 or so runs on it as of yet, should be able to up that a decent amount.


Offline RacerX9623

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Re: Motorcycle: Front Brake required?
« Reply #8 on: October 31, 2012, 09:23:35 AM »
Twin engine Tryimph.  :-o. O man I can't wait till spring. You got any photos ?
trying to go 200 KPH with a 250cc four stroke.

Offline relaxedphit

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Re: Motorcycle: Front Brake required?
« Reply #9 on: November 01, 2012, 03:58:49 PM »
Eric, you spelled the motorcycle brand like I rode it, but yes...pictures,pictures

Offline RacerX9623

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Re: Motorcycle: Front Brake required?
« Reply #10 on: November 01, 2012, 08:38:44 PM »
If I spell Triumph right can we have a video.. :-P
trying to go 200 KPH with a 250cc four stroke.


Offline relaxedphit

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Re: Motorcycle: Front Brake required?
« Reply #12 on: November 08, 2012, 03:29:30 PM »
Marvelous videos - caught a couple of your others while on youtube. What did y'all run on the salt?

Offline RacerX9623

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Re: Motorcycle: Front Brake required?
« Reply #13 on: November 08, 2012, 08:33:27 PM »
Thanks for the Videos. That is a beautiful piece of work. I cant wait to see it. And hear it.
trying to go 200 KPH with a 250cc four stroke.

Offline Peter Jack

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Re: Motorcycle: Front Brake required?
« Reply #14 on: November 08, 2012, 08:44:50 PM »
Loved the sound when it was leaving the line!  :-D :-D :-D

Pete