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any pros and cons

Started by mach1, February 25, 2008, 10:23:54 PM

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mach1

I would like to link my rear brake with the front. I know the rear locks up easy so I would bleed air into the rear caliper.
04Gs,fenderectomy,V&H Full exhaust,Vortex clip-ons.13t front sprocket.,Uni Pods,22.5/65/147.5,Katana rear shock,M-1 metzeler 150 rear tire,Yamaha R6 Tail-SOLD
79 Honda CM185t-In restoration mode with this bike.DEAD slammed 2003 Honda Shadow 600, matte black everything 18inch ape hangers

jrsgs5f

why would you want to do that.  I can't think of any pros.

ohgood

#2
Quote from: mach1 on February 25, 2008, 10:23:54 PM
I would like to link my rear brake with the front. I know the rear locks up easy so I would bleed air into the rear caliper.

yeeeikes !

maybe your rear brake arm (by your foot) is out of adjustment, and the travel is too aggressive ? or maybe you're just using it too aggressively ? either way, the rear locking is a really quick way to ruin your day. sure, if you were to allow air in the system, it wouldn't be as aggressive, but maybe something is wrong back there ?

wheel out of alignment, bald tire, too aggressive, slick roads, gravel, sand etc ?

you should be able to stop nornally and not lock the rear. once you learn to modulate the brakes instead of thinking of them as an ON OFF switch, you can get ALLOT of stopping power out of them without locking the rear.

:)


tt_four: "and believe me, BMW motorcycles are 50% metal, rubber and plastic, and 50% useless

GeeP

Learn proper braking technique. 

The problem with linked braking is the front/rear bias is set and cannot be adjusted during braking.  Therefore, you're never getting 100% braking because the rear must always be biased below the lock point.  On a bike capable of doing a stoppie, the bias point is 100% front, 0% rear, as the rear can come off the ground.  So, standard hydraulic linked brakes won't work too well.  You would have to come up with a proportioning valve that could vary the rear brake as a function of front suspension load, or braking G.
Every zero you add to the tolerance adds a zero to the price.

If the product "fails" will the product liability insurance pay for the "failure" until it turns 18?

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ohgood

Quote from: GeeP on February 26, 2008, 05:56:56 AM
Learn proper braking technique. 

The problem with linked braking is the front/rear bias is set and cannot be adjusted during braking.  Therefore, you're never getting 100% braking because the rear must always be biased below the lock point.  On a bike capable of doing a stoppie, the bias point is 100% front, 0% rear, as the rear can come off the ground.  So, standard hydraulic linked brakes won't work too well.  You would have to come up with a proportioning valve that could vary the rear brake as a function of front suspension load, or braking G.

nice point. bmw and others have been working on this a while, and riders still complain about ABS and linked brakes. :)


tt_four: "and believe me, BMW motorcycles are 50% metal, rubber and plastic, and 50% useless

mach1

I dont lock the rear brake, I dont even use a rear brake  (no brake pedal) I want to have a rear brake handle on my bars for wheelies( :icon_rolleyes:) yeah I know lame but ive seen it done on super bikes
04Gs,fenderectomy,V&H Full exhaust,Vortex clip-ons.13t front sprocket.,Uni Pods,22.5/65/147.5,Katana rear shock,M-1 metzeler 150 rear tire,Yamaha R6 Tail-SOLD
79 Honda CM185t-In restoration mode with this bike.DEAD slammed 2003 Honda Shadow 600, matte black everything 18inch ape hangers

tussey

Quote from: mach1 on February 26, 2008, 07:18:38 AM
I dont lock the rear brake, I dont even use a rear brake  (no brake pedal) I want to have a rear brake handle on my bars for wheelies( :icon_rolleyes:) yeah I know lame but ive seen it done on super bikes

wait, why don't you have a rear brake pedal?

frankieG

i disconnected my rear brake for a while cuz the electrical did not fit on my woodcraft rearsets.  i don't think i would link the two braking systems together.  it just sound dangerous to me
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dgyver

Quote from: mach1 on February 26, 2008, 07:18:38 AM
I dont lock the rear brake, I dont even use a rear brake  (no brake pedal) I want to have a rear brake handle on my bars for wheelies( :icon_rolleyes:) yeah I know lame but ive seen it done on super bikes

Get a thumb brake or use a second m/c.
Common sense in not very common.

mach1

where can I get one of those Dgyver? Im not running a rear brake lever cuz my rearsets dont have a bracket for the MC
04Gs,fenderectomy,V&H Full exhaust,Vortex clip-ons.13t front sprocket.,Uni Pods,22.5/65/147.5,Katana rear shock,M-1 metzeler 150 rear tire,Yamaha R6 Tail-SOLD
79 Honda CM185t-In restoration mode with this bike.DEAD slammed 2003 Honda Shadow 600, matte black everything 18inch ape hangers

spc

Hit one of the stunter forums.  You could mod a hand brake setup from a dirt bike to do it.

dgyver

Quote from: mach1 on February 26, 2008, 07:02:53 PM
where can I get one of those Dgyver? Im not running a rear brake lever cuz my rearsets dont have a bracket for the MC

http://stores.sportbiketrackgear.com/Categories.bok?category=BRAKES%3AGP+Tech+thumb+brakes

google.com works great.


Common sense in not very common.

spc

Hit ebay, not a lot in auction but a ton in stores.

erbilabuc

Quote from: mach1 on February 26, 2008, 07:18:38 AM
I dont lock the rear brake, I dont even use a rear brake  (no brake pedal) I want to have a rear brake handle on my bars for wheelies( :icon_rolleyes:) yeah I know lame but ive seen it done on super bikes

way off topic here but: how easy is it to do a wheelie with the 14t sprocket? Power ups or clutch ups? Did you stiffen the front end at all?
riders formely known as IMPORTBABE

mach1

Clutvh ups and no. Its not hard if your practice but Im still not able to ride them out yet Ill wait for the 45t rear sprocket for that. :thumb:
04Gs,fenderectomy,V&H Full exhaust,Vortex clip-ons.13t front sprocket.,Uni Pods,22.5/65/147.5,Katana rear shock,M-1 metzeler 150 rear tire,Yamaha R6 Tail-SOLD
79 Honda CM185t-In restoration mode with this bike.DEAD slammed 2003 Honda Shadow 600, matte black everything 18inch ape hangers

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