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ACS Boa brakes - better than most?  RSS Feed

#1 2010-09-11 4:10pm

kmpap
Pro Member
From: Seattle, WA
Registered: 2007-08-21
Posts: 3175
Bikes: 17
For Sale: 1

ACS Boa brakes - better than most?

Are ACS Boa brakes better than your average caliper (say, a Dia Compe 883)? 

They're huge, have sealed mechanisms, and generally look about as beefy as a 990....

http://i230.photobucket.com/albums/ee105/kmpap/index.jpg

Do they really brake better than the smaller calipers?

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#2 2010-09-11 4:14pm

squirrelsmith
Pro MemberLoves Naked Animated Girls!
From: Seattle wa
Registered: 2008-05-28
Posts: 11490
Bikes: 3
For Sale: 1

Re: ACS Boa brakes - better than most?

they are the best. period!


ya'll wanna see a dead body?

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#3 2010-09-11 4:15pm

Haro-83
Pro MemberTEXAS HILLBILLY
From: East Texas
Registered: 2009-10-05
Posts: 11530
Bikes: 63

Re: ACS Boa brakes - better than most?

i never have a cnance to own this. if i seen one i will grab it forsure


Build it, Ride it and Break it. That what it was made for.

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#4 2010-09-11 9:58pm

jay brand
Pro MemberHomeless Bikes Nut
From: Springfield, MO
Registered: 2008-07-27
Posts: 4026
Website

Re: ACS Boa brakes - better than most?

They work great. Be warned though, most of them out there for sale are the large bolt size. You will have to drill out your fork to make it fit. Be sure to ask what size the bolt is before you buy it.


The devil said "Scratch my back and I'll scratch your back for sure"

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#5 2010-09-12 6:17am

jfactor1
Crackhead In Training
From: Coleman, MI
Registered: 2009-07-26
Posts: 1060
Bikes: 5

Re: ACS Boa brakes - better than most?

jay brand wrote:

They work great. Be warned though, most of them out there for sale are the large bolt size. You will have to drill out your fork to make it fit. Be sure to ask what size the bolt is before you buy it.

+1 on the bolt issue.  However, if you're gonna put a BOA on a rider you probably want the bigger bolt.  Supposedly when they first came out the smaller bolt would break.  I put a set on my 91 Ground Master and had to drill out the fork.  Completely worth it though because those brakes work incredible. smile


[img]http://i50.photobucket.com/albums/f304/jfactor1/pw07.png[/img]
"You'll be sorry Pee Wee Herman."

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#6 2010-09-12 7:26am

elfbiker
Born Broken
From: Sacramento, CA
Registered: 2008-02-21
Posts: 1765
Bikes: 7
Website

Re: ACS Boa brakes - better than most?

Yep those acs boa brakes are smooth and the bolt issue (smaller bolt) never had it even as a kid. I even had it on the front to do endos and never broke.


Need a 24" Elf Traction plate frame and fork.
<<<RIP BUDDY

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#7 2010-09-12 7:43am

skubasteve
Pro Member
From: Virginia
Registered: 2008-10-14
Posts: 3685
Bikes: 3
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Re: ACS Boa brakes - better than most?

How much larger is the bolt. I remember using these as a kid but can't remember if had to drill the hole in my '88 Master.


I try not to smile cause I got my teeth knocked out by a chainsaw

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#8 2010-09-12 7:45am

Godzilla
Pro Member
From: PDX
Registered: 2009-10-17
Posts: 3284

Re: ACS Boa brakes - better than most?

Very heavy, and as a front brake if you like scuffing, the front screw will most certainly fly off one or twice a day


"Everybody has an emergency between the paypal transaction and the post office." - TentLover

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#9 2010-09-12 9:08am

4130
Intermediate
Registered: 2009-09-12
Posts: 470
Bikes: 1

Re: ACS Boa brakes - better than most?

They SUCK! Send them to ME!!! winktongue

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#10 2010-09-12 9:32am

franticbmx
Museum Addict
From: Calgary, Canada
Registered: 2008-12-31
Posts: 1562
Bikes: 2

Re: ACS Boa brakes - better than most?

Yea, the small bolts broke. I exploded 2 sets on bunnyhops to nose picks on ledges. The bearings scatter everywhere! But they were the best. I also need a set of front small bolt:D


All i want to buy is a cyclecraft made BLOCK.

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#11 2010-09-12 10:44am

RADbandit
Pro MemberGeneration F
From: Dutch Harbor, AK
Registered: 2008-08-25
Posts: 1971
Bikes: 7
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Re: ACS Boa brakes - better than most?

Yeah I finally found one for my Riot.  They are the smoothest by far.


Looking for :VDC freestyle bars / Wilkerson Airlines parts / any 2-hip midschool parts / 86 Skyway Streetbeat (lavender - white) / Action Zone handle bars /  dominator pro / OG Finish Grey GT PP, PWT or PFT

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#12 2010-09-12 10:54am

Keebler Elf 24"
"The Cookie Tosser".
From: Austin, TX
Registered: 2010-03-20
Posts: 893
Bikes: 1

Re: ACS Boa brakes - better than most?

I love the Boa on my ELF.  I am constantly amazed how strong it grips.  My bike stops like it has canti's on it.


Will trade for Vinyl.

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#13 2010-09-12 1:20pm

oldschoolcolo
Expert
From: Colorado
Registered: 2006-01-01
Posts: 814
Bikes: 17
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Re: ACS Boa brakes - better than most?

got em front and back on my Mongoose pro class 24

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#14 2010-09-12 3:20pm

CythoN
Trail Boss
From: Hertfordshire, UK
Registered: 2007-09-08
Posts: 2324
Bikes: 17

Re: ACS Boa brakes - better than most?

Ive got a set on the front of my 92 master,  powerful as hell!   best non U brake you can get.

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#15 2010-09-12 3:20pm

CythoN
Trail Boss
From: Hertfordshire, UK
Registered: 2007-09-08
Posts: 2324
Bikes: 17

Re: ACS Boa brakes - better than most?

oh they come in 6 and 10mm size bolts

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#16 2010-09-12 3:29pm

WuTangBMX
Pro MemberBanned
From: Coventry, RI
Registered: 2010-05-19
Posts: 1718
Bikes: 5

Re: ACS Boa brakes - better than most?

I personally think Proponet brakes grab like a mofo~


Banned for numerous drama threads and inappropriate language

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#17 2010-09-15 3:55pm

skubasteve
Pro Member
From: Virginia
Registered: 2008-10-14
Posts: 3685
Bikes: 3
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Re: ACS Boa brakes - better than most?

Are these worth drilling a larger hole into my Rl20II forks? What to do ???roll


I try not to smile cause I got my teeth knocked out by a chainsaw

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#18 2010-09-15 3:58pm

bikehustler
Pro Member
From: Canada
Registered: 2007-01-03
Posts: 1408

Re: ACS Boa brakes - better than most?

good for freestyle for shizzl...wink

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#19 2011-04-06 3:36pm

Vendetta
Member
From: Huntington Beach, CA
Registered: 2010-11-22
Posts: 73
Bikes: 4

Re: ACS Boa brakes - better than most?

I love these brakes. Just a suggesting before anyone goes drilling out their brake holes. If you have an older S&M or flat style brake mount in the rear you can use a bench grinder or file to shave down the sides of the 10mm bolt. Kind of like the old slotted hub axels. I did this on a couple of my builds and it worked great. The bolt is way beefier than the small bolt and you don't have to mess with the bolt swap. I tried the bolt swap and its a little tricky. You can still pick up the 10mm boa NOS on eBay for like $30 shipped. Heres a couple of pics of what im taking about. I would never drill out a frame, but thats just me. Hope this helps someone.

http://i20.photobucket.com/albums/b215/mykspice/photo-12.jpg
http://i20.photobucket.com/albums/b215/mykspice/photo-14.jpg
http://i20.photobucket.com/albums/b215/mykspice/photo-13-1.jpg

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#20 2011-04-06 3:43pm

murph3699
"Prostyler Fiend"
From: Massachusetts
Registered: 2007-10-08
Posts: 2423
Bikes: 12

Re: ACS Boa brakes - better than most?

I wish I saw this thread when I was selling one my small bolt Boas. Someone questioned the price and told me they were as common as the large bolt variety

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#21 2011-04-06 3:45pm

vt102
Museum Addict
From: Oahu, HI
Registered: 2009-09-15
Posts: 1043
Bikes: 5

Re: ACS Boa brakes - better than most?

WuTangBMX wrote:

I personally think Proponet brakes grab like a mofo~

I beg to differ on that. I had a set on my 89 master....grabbed for nothing... hmm

I personally like the original Nippons with the allen bolt.

Last edited by vt102 (2011-04-06 3:48pm)

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#22 2011-04-06 3:52pm

chromey
Pro MemberObi-Wan Chromey
From: Philadelphia, PA
Registered: 2007-07-19
Posts: 11436
Bikes: 17

Re: ACS Boa brakes - better than most?

Kev, Don't drill a frame for those brakes.
They work well, yes. But not really any better than a well-tuned diacompe brake (883, 880) etc.

While they are beefy yes! BUT the beefyness doesn't really matter when the whole brake mechanism is riding on a bearing facing the wrong direction. The brake is only as strong as a skateboard bearing. My point is, They are great brakes in the beginning but... they wear out - to a point where they're not adjustable. Yes, you get not brake arm flex.. but the flex (more like "rocking") eventually occurs inside the bearing cartridge - which was designed to take vertical load bearing, not lateral-force. 

it was a nice thought by ACS, but a little bit over designed for a result that doesn't last.

That being said. - I am using one on the back of my trick star right now - but it's a skinny/standard bolt size. No frame modifications.
I'm using this brake because the 883 did not reach my back rim when mounted under the seat stay... It works -  But I can see the flex/rocking on the pivot bolt happening - and I don't expect it to last too much longer - the way I ride this bike.

bottom line — Don't even mod a frame for a gimmicky brake smile

just my ¢.43  smile


— — — — —
"Ahhh, Home Crap Home...."

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#23 2011-04-06 4:20pm

jay brand
Pro MemberHomeless Bikes Nut
From: Springfield, MO
Registered: 2008-07-27
Posts: 4026
Website

Re: ACS Boa brakes - better than most?

chromey wrote:

Kev, Don't drill a frame for those brakes.
They work well, yes. But not really any better than a well-tuned diacompe brake (883, 880) etc.

While they are beefy yes! BUT the beefyness doesn't really matter when the whole brake mechanism is riding on a bearing facing the wrong direction. The brake is only as strong as a skateboard bearing. My point is, They are great brakes in the beginning but... they wear out - to a point where they're not adjustable. Yes, you get not brake arm flex.. but the flex (more like "rocking") eventually occurs inside the bearing cartridge - which was designed to take vertical load bearing, not lateral-force. 

it was a nice thought by ACS, but a little bit over designed for a result that doesn't last.

That being said. - I am using one on the back of my trick star right now - but it's a skinny/standard bolt size. No frame modifications.
I'm using this brake because the 883 did not reach my back rim when mounted under the seat stay... It works -  But I can see the flex/rocking on the pivot bolt happening - and I don't expect it to last too much longer - the way I ride this bike.

bottom line — Don't even mod a frame for a gimmicky brake smile

just my ¢.43  smile

+1. No brake is worth drilling out a frame or fork when you can buy a brake that fits and also works.


The devil said "Scratch my back and I'll scratch your back for sure"

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#24 2011-04-06 4:59pm

vt102
Museum Addict
From: Oahu, HI
Registered: 2009-09-15
Posts: 1043
Bikes: 5

Re: ACS Boa brakes - better than most?

jay brand wrote:

chromey wrote:

Kev, Don't drill a frame for those brakes.
They work well, yes. But not really any better than a well-tuned diacompe brake (883, 880) etc.

While they are beefy yes! BUT the beefyness doesn't really matter when the whole brake mechanism is riding on a bearing facing the wrong direction. The brake is only as strong as a skateboard bearing. My point is, They are great brakes in the beginning but... they wear out - to a point where they're not adjustable. Yes, you get not brake arm flex.. but the flex (more like "rocking") eventually occurs inside the bearing cartridge - which was designed to take vertical load bearing, not lateral-force. 

it was a nice thought by ACS, but a little bit over designed for a result that doesn't last.

That being said. - I am using one on the back of my trick star right now - but it's a skinny/standard bolt size. No frame modifications.
I'm using this brake because the 883 did not reach my back rim when mounted under the seat stay... It works -  But I can see the flex/rocking on the pivot bolt happening - and I don't expect it to last too much longer - the way I ride this bike.

bottom line — Don't even mod a frame for a gimmicky brake smile

just my ¢.43  smile

+1. No brake is worth drilling out a frame or fork when you can buy a brake that fits and also works.

+1 TOO! Not worth it....especially if it is an older frame and fork... like a 85-86 RL20II. sad A friend of mind drilled his RL fork to fit it. sad

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#25 2011-04-06 6:03pm

oldschoolfool74
Expert
From: Louisville, KY
Registered: 2010-12-24
Posts: 926

Re: ACS Boa brakes - better than most?

those RL are a dime a dozen you can pick them up all day long .  lollollol drill away lollollol


I am in a van down by the river.

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