Rear brake issue on my Vegas - Victory Forums - Victory Motorcycle Forum
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post #1 of 18 (permalink) Old 05-20-2015, 07:15 PM Thread Starter
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Default Rear brake issue on my Vegas

2010 Vegas 100/6 ...67,000kms..last night took the long way home,as I often do. Riding briskly up and over a twisting hill with nice bends.
Coming back down I noted the rear brake pedal travelling further and the brake not having its usual bite.
Changed to Lyndals pads at 40,000 kms so the brakes are normally excellent.
I do tend to use the rear on this bike a lot more than other bikes ive owned as its very effective,
I do use both in emergency.
Stopped using it for 5 mins and back up the highway to let it cool down then near home used it hard and it went all the way down without locking the wheel.
Got home and checked fluid was ok. Level ok. Clear fluid. Checked lines no leaks, got torch out, couple of small pea size pebbles down inside the caliper against the exposed part of the upper piston. No evidence of leakage.
Got some fresh Dot4 fluid and with the help of a lady working the brake I on/off bled the old fluid out and new stuff in.
There was a little air came out.
Off to get a new rear tyre today so Ill get the pebbles out of the caliper then.
Gonna monitor my rear pedal travel.
Took it round the block a coupla times after bleeding and it stops great now.
Yeah I know brake fluid should be changed every 2 years but who actually does that?
Ill see how she goes today bedding in the new tyre.

Victory Vegas 2010
Lloydz 109"cube big bore
" " 495 cams
" " TorqueTubes
" " timing wheel @4 deg.
" " Primary plate
" " IAV
RPW Slash pipes
PCV
Progressive 465 rear shock
Kingpin USD Forks
18" XC front wheel
1 3/4" 'Burleigh Bars'
Stebel air horn
12.106 @110.90mph
114/123

Victory Cross Country 2010 (106)
Lloyds air filter
" " VM1 Cams
Home gutted exhaust
Maximus
Both tuned by [email protected] Dyno
110/116

Gold Coast
Australia
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post #2 of 18 (permalink) Old 05-20-2015, 07:43 PM
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Hey MB! I appreciate how everyone has their own way and style of doing things but I invite you to try to get in the habit of using both front and back at the same time.

In my experience, I've tried using both singly and learned the hard way that front brake will put you down by itself in loose gravel and back brake alone, will slide and cause you to possibly lose control.

Using both together will also equally save you replacing one set before the other.
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post #3 of 18 (permalink) Old 05-20-2015, 10:13 PM Thread Starter
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Quote:
Originally Posted by DillPickle311 View Post
Hey MB! I appreciate how everyone has their own way and style of doing things but I invite you to try to get in the habit of using both front and back at the same time.

In my experience, I've tried using both singly and learned the hard way that front brake will put you down by itself in loose gravel and back brake alone, will slide and cause you to possibly lose control.

Using both together will also equally save you replacing one set before the other.
Dill, lets make a deal, you don't tell me how to ride and I wont criticise your footwear (they're your ankles after all)

Victory Vegas 2010
Lloydz 109"cube big bore
" " 495 cams
" " TorqueTubes
" " timing wheel @4 deg.
" " Primary plate
" " IAV
RPW Slash pipes
PCV
Progressive 465 rear shock
Kingpin USD Forks
18" XC front wheel
1 3/4" 'Burleigh Bars'
Stebel air horn
12.106 @110.90mph
114/123

Victory Cross Country 2010 (106)
Lloyds air filter
" " VM1 Cams
Home gutted exhaust
Maximus
Both tuned by [email protected] Dyno
110/116

Gold Coast
Australia
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post #4 of 18 (permalink) Old 05-20-2015, 10:22 PM
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Quote:
Originally Posted by Motorbikerx View Post
Dill, lets make a deal, you don't tell me how to ride and I wont criticise your footwear (they're your ankles after all)

Lol!!! I am guilty of neither... Well maybe I am. I never use my back brake unless riding really hard or there is an emergency. Dill cover those skinny ankles! MBX start using your front brake more!
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post #5 of 18 (permalink) Old 05-20-2015, 10:42 PM Thread Starter
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OK lets get back to where the air came from and changing our brake fluid every 2 years.

Victory Vegas 2010
Lloydz 109"cube big bore
" " 495 cams
" " TorqueTubes
" " timing wheel @4 deg.
" " Primary plate
" " IAV
RPW Slash pipes
PCV
Progressive 465 rear shock
Kingpin USD Forks
18" XC front wheel
1 3/4" 'Burleigh Bars'
Stebel air horn
12.106 @110.90mph
114/123

Victory Cross Country 2010 (106)
Lloyds air filter
" " VM1 Cams
Home gutted exhaust
Maximus
Both tuned by [email protected] Dyno
110/116

Gold Coast
Australia
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post #6 of 18 (permalink) Old 05-20-2015, 10:53 PM
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Check the diaphragm dealy thingy that activates the calipers... If there is any weeping it's likely coming from there.
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post #7 of 18 (permalink) Old 05-20-2015, 10:56 PM Thread Starter
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Quote:
Originally Posted by Travis P View Post
Check the diaphragm dealy thingy that activates the calipers... If there is any weeping it's likely coming from there.
no comprende

Victory Vegas 2010
Lloydz 109"cube big bore
" " 495 cams
" " TorqueTubes
" " timing wheel @4 deg.
" " Primary plate
" " IAV
RPW Slash pipes
PCV
Progressive 465 rear shock
Kingpin USD Forks
18" XC front wheel
1 3/4" 'Burleigh Bars'
Stebel air horn
12.106 @110.90mph
114/123

Victory Cross Country 2010 (106)
Lloyds air filter
" " VM1 Cams
Home gutted exhaust
Maximus
Both tuned by [email protected] Dyno
110/116

Gold Coast
Australia
Motorbikerx is offline  
post #8 of 18 (permalink) Old 05-20-2015, 11:03 PM
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I will post a picture in the morning... It happened on one of my dirtcycle's many moons ago.
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post #9 of 18 (permalink) Old 05-21-2015, 03:23 AM Thread Starter
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no weepage or fluid loss, had rear tyre changed this arvo and got em to pick the stones outta the caliper while they were at it.
Tyre man who also services bikes says with our climate and the way we ride, that we should change brake fluid yearly not every two years as specced.
My fluid was probably 5 years old, so therein lies the problem.
brake fluids hydroscopic (it attracts and absorbs water)
Ride hard and brakes get very hot, water in fluid gets hot, boils, creates air, pedal gets spongy.
Change brake fluid by bleeding through which expels air as well (I did see some air bubbles), and got a good hard brake pedal.
Had to ride very steady coming home, brand new tyre and pissing down rain, brakes work fine but if its sunny tomoz Ill go out and scrub in the tyre and see if the brakes are up to scratch.
Ill get more fresh dot4 fluid and flush the front brake system too cos its gotta be 5 years old too.

Victory Vegas 2010
Lloydz 109"cube big bore
" " 495 cams
" " TorqueTubes
" " timing wheel @4 deg.
" " Primary plate
" " IAV
RPW Slash pipes
PCV
Progressive 465 rear shock
Kingpin USD Forks
18" XC front wheel
1 3/4" 'Burleigh Bars'
Stebel air horn
12.106 @110.90mph
114/123

Victory Cross Country 2010 (106)
Lloyds air filter
" " VM1 Cams
Home gutted exhaust
Maximus
Both tuned by [email protected] Dyno
110/116

Gold Coast
Australia
Motorbikerx is offline  
post #10 of 18 (permalink) Old 05-21-2015, 11:24 AM
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good for you changing the fluid.
I like the idea of you getting a girl to help you

2008 Vision
Mpls, MN.

Please add your state and model of bike you have. Click user CP @ top of page and then far left click edit signature. Thanks
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