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retrofitting ABS

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bigdom86
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PostPosted: 09:28 - 09 Oct 2018    Post subject: retrofitting ABS Reply with quote

is this possible? maybe a silly question, was just wondering as I tend to prefer older SS bikes
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MarJay
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PostPosted: 09:39 - 09 Oct 2018    Post subject: Re: retrofitting ABS Reply with quote

bigdom86 wrote:
is this possible? maybe a silly question, was just wondering as I tend to prefer older SS bikes


No point. Complex. Heavy. Expensive. Probably not possible.
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c_dug
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PostPosted: 09:52 - 09 Oct 2018    Post subject: Reply with quote

I'm sure a few years back some of the shitty Chinese 125s came with an in-line ABS valve of some sort.

Not the slightest clue how it would work, and it'd likely be dreadful, but I suspect it'd be retrofittable.
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Ste
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PostPosted: 09:53 - 09 Oct 2018    Post subject: Reply with quote

You could if for some strange reason you wanted to throw silly amounts of money at it.

So no, you shouldn't have ABS retrofitted to your bike. The first stumbling block would be trying to find a garage who would be willing to do the work for you. Laughing
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sickpup
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PostPosted: 10:56 - 09 Oct 2018    Post subject: Reply with quote

c_dug wrote:
I'm sure a few years back some of the shitty Chinese 125s came with an in-line ABS valve of some sort.


It was pseudo ABS. It used a diaphram that vibrated under pressure of the brake hydraulics giving a pulsing at the pad.
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kramdra
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PostPosted: 14:57 - 09 Oct 2018    Post subject: Reply with quote

In theory it is easy. I believe most ABS controllers/ecu's are independant units. You'd need to take the full system - callipers, sensor, hoses, modulator valve, controller(s) and wiring - from an existing abs bike, and then it should just work.
You'd probably want a bike with similar geometry, performance and weight as you wont be able to adjust the abs contoller programming/sensitivity - it might work but be shit.
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bigdom86
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PostPosted: 15:36 - 09 Oct 2018    Post subject: re Reply with quote

thanks guys, sounds like a bit of a ballache, trying to work out if it is my riding or my tyres are complete shite as to why they seem to slide quite a bit when i have to hard brake on the rear (use front too), BT021s still on and due to change to PR4/5s soon
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talkToTheHat
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PostPosted: 15:38 - 09 Oct 2018    Post subject: Reply with quote

This RD350 with an ABS retrofit was in the news recently
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chickenstrip
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PostPosted: 15:40 - 09 Oct 2018    Post subject: Reply with quote

Firstly, BT021s are crap.
Secondly, are you locking up the rear? I rarely if ever use hard braking with the rear. Perhaps your front brakes need some attention to get them up to the performance where you're more confident using them?
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tom_e
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PostPosted: 16:29 - 09 Oct 2018    Post subject: Re: re Reply with quote

bigdom86 wrote:
thanks guys, sounds like a bit of a ballache, trying to work out if it is my riding or my tyres are complete shite as to why they seem to slide quite a bit when i have to hard brake on the rear (use front too), BT021s still on and due to change to PR4/5s soon


BT021s are total shit and it might be worth tearing down your rear brake caliper and pedal, when I first got my bike the pedal pivot was so gummed up with shit it was on/off stripped it cleaned it greased it over 40k miles ago and as long as I give it a squirt with some ACF50/light oil every now and again it gives a nice smooth action.
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RhynoCZ
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PostPosted: 16:33 - 09 Oct 2018    Post subject: Reply with quote

In 10 years of motorcycling I have never, ever came to a point that I would need ABS. If you are afraid of your front brake, just find an empty car park with dry and clean surface and try some hard braking there.

The front brake is easy, it's the rear brake that requires a lot of practice and getting to know your motorcycle. On some motorcycles (sports bikes) you can't even feel the rear getting locked until you feel sideways movement. On the ZX7R it was nothing, nothing, nothing, hard lock! Razz

Also, last bit I've got to add. Use only 1 or 2 fingers on the brake lever. There won't be ever a situation you will be required to full hand grab the front brake lever. 1 or 2 fingers should be enough even in emergency braking. If you feel like that's just not enough, then your brake needs some attention.
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Tdibs
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PostPosted: 20:33 - 09 Oct 2018    Post subject: Reply with quote

Spend that money on PR4/5's and enjoy the grip!
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thx1138
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PostPosted: 21:19 - 09 Oct 2018    Post subject: Re: retrofitting ABS Reply with quote

bigdom86 wrote:
is this possible?


yes, it is possible
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kramdra
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PostPosted: 21:36 - 09 Oct 2018    Post subject: Re: re Reply with quote

bigdom86 wrote:
thanks guys, sounds like a bit of a ballache, trying to work out if it is my riding or my tyres are complete shite as to why they seem to slide quite a bit when i have to hard brake on the rear (use front too), BT021s still on and due to change to PR4/5s soon


Likely the calliper and seals are so filled with shit that it can not move freely. The moment there is enough pressure to overcome the seal friction there is also enough braking force to lock the wheel. Before you change tire - so you know the difference, test it. Brake pads out, unmount calliper. Tiny press on lever and then push piston back the same amount with your thumb. It should move easily. If it does not, pop the piston out and clean everything, including the sliders. It is worth having a spare set of callipers. My bike gets a lot of use so I clean and swap once a year.
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