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peen0_0
Level 3 Member
Victoria
224 Posts |
 Posted - 01 Apr 2011 : 2:42:55 PM
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Does anyone have knowledge of, or can someone tell me about boring out the CB750 front brake mmaster cylinder to 16mm? I've had it suggested to me that this can be done and then fitted with a GSXR kit, with a resultant improvemnent in braking. Anyone have any thoughts, knowledge of this that you will share?
Cheers, Tony.
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Alan
Forum Moderator
Western Australia
353 Posts |
Posted - 01 Apr 2011 : 8:06:31 PM
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If you want to change the bore it is quite easy and any decent brake specialist can do it. What you need to be careful of is if you go too big with your bore then you might give yourself a harder braking action. Although its hydraulic it works like a lever, big bore in the master cylinder means greater displacement of fluid which will lead to less travel on your lever but a harder action. if you went the other way and put a smaller bore in your master cylinder then you would end up with greater leverage and more travel at the lever and a more progressive brake.
Sorry if that was a bit long winded
Alan sidecar 21 WA |
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Allan
Site Moderator
National
599 Posts |
Posted - 02 Apr 2011 : 07:17:19 AM
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| there is a place in west brunswick that puts in statnless steel incerts in master cyclinders |
Allan Greening |
Edited by - Allan on 02 Apr 2011 07:18:16 AM |
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peen0_0
Level 3 Member
Victoria
224 Posts |
Posted - 02 Apr 2011 : 2:55:24 PM
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| Thanks to both Allan's for the advice.Nothing on this topic is too long winded. I've got some good brake specilaists here in Bendigo as well, so might have a talk to them? We're running a single disc on the new outfit, with a 4 pot caliper, hence the query about better master cylinder performance. Cheers, Tony. |
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Bummers
Level 3 Member
Queensland
244 Posts |
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peen0_0
Level 3 Member
Victoria
224 Posts |
Posted - 02 Apr 2011 : 5:17:10 PM
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| You're a gentleman big fella, thank you. This is goping to be very helpful, as its exactly what I am after. Now to get the 17 year old year 12 Maths genius to help me work out the best ratio. Cheers, Tony. |
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peen0_0
Level 3 Member
Victoria
224 Posts |
Posted - 03 Apr 2011 : 11:39:22 AM
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| Interestingly, according to the chart in this link, the stock Honda CB750 Master cylinder is well within the desired range for good brake performance, with the system that we have in place.Just goes to show that sometimes you need to leave well enough alone, but I wouldn't have known this without the advice that I have been given. Thanks again. Cheers, Tony. |
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conker
Really - acotrel - Now banned
Victoria
361 Posts |
Posted - 03 Apr 2011 : 11:17:38 PM
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| I left the rubber bellows out of the reservoir on my Lockheed master cylinder. While I was riding it, it took a gulp of air instead of fluid!- whoops, NO BRAKES. |
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Topic |
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Modifying brake master cyclinder
