Brake calipers upgrade

[robmac]

If you change the master cylinder to a more modern radial type/matched master the benefits of the R1 calipers are clear over the standard caliper. In saying that 'most' of the riders that I have seen riding a VMax aren't exactly setting the world on fire in relation to the pace they carry so a lot of it is just how they look. Maybe everyone else on the internet/this forum is a gun rider though lol

The 6 piston caliper and whether or not that is an upgrade is debatable too. eg The early Busa had six pots....the newer 4 pots with smaller rotors. The later models have much stronger brakes.

Brembo make some sensational brake calipers....even the motgp one's are 4 pot.

 

[Traumahawk]

If you change the master cylinder to a more modern radial type/matched master the benefits of the R1 calipers are clear over the standard caliper. In saying that 'most' of the riders that I have seen riding a VMax aren't exactly setting the world on fire in relation to the pace they carry so a lot of it is just how they look. Maybe everyone else on the internet/this forum is a gun rider though lol

The 6 piston caliper and whether or not that is an upgrade is debatable too. eg The early Busa had six pots....the newer 4 pots with smaller rotors. The later models have much stronger brakes.

Brembo make some sensational brake calipers....even the motgp one's are 4 pot.

I wonder if it comes down to the size of the pistons/area of the pad? The MC would also play into that as well. The Gen 2's....which are heavier (for what they are capable of doing) have 6 pots.

 

[02GF74]

Thanx for quick answer. I'm from UK so try find something here.

I'm about 20 miles down the road from you.

A while back on a mountain bike forum there was discussion about brake rotor/pad area and surprising as it may be (it was too me!), it does not make a difference* and the equations back it up.

*looking at it simplistically, it is coefficient of friction that makes the difference not area, but as quoted below, other effects and benefits arise with different calliper set ups.

Generally, 4 pot vs 6 pot, you do not really get more braking power. The brake torque remains the same.

Brake torque is dependant on coefficient of friction, force applied, and moment arm.

By increasing the number of pots, you just cause the braking force to be applied more evenly. Or you can fit on a bigger brake pad. This allows the brake to heat up slower (as you have a bigger surface area now) and also can last longer (more material).

Anyways, until my bike is registered, I have time to think and an irrisistible urge to tinker. It appears the same calliper is used on a number of bikes and S/H prices go in line with the performance/price of the bike i.e. callipers from a 'lowly' Fazer 600 are about £ 30 cheaper than from R1 yet they seem to be the same (they certainly use the same pads)

I am considering callipers with the silver anodised covers (since my bike has no blue on it) - very much like the mt07 photo posted above. I *think* the r1 type callipers are slightly lighter which is good for unsprung weight, not that it will be noticeable and IMO look nicer too.

 

[user 16790]

I have the MT/TRACER silver spots on my 1991 bike, I still have the standard size (smaller) discs but bought more modern ones as the original slotted disc was too wide for the new calipers, my son made me some small stainless spacers to fit them, in fact he bought me the calipers after reading about the 'poor' standard calipers that were on my bike, this is the only reason I fitted them,
in all honesty I was quite happy with the standard brakes for my way of riding, yes the newer calipers give more braking but the lever action is rock hard so I fitted an XJR1300 master cylinder which makes braking nice again, of course me being one for even-ness I then had to have a 'matching' XJR clutch master cylinder too

 

[02GF74]

ok, so I have the cleanest S/H callipers (and dirtiest tea towel) on this forum .... probably

but this has go me thinking:

the newer calkipers give more braking but the lever action is rock hard so I fitted an XJR1300 master cylinder which makes braking nice again, of course me being one for even-ness I then had to have a 'matching' XJR clutch master cylinder too

The reason for the above is that the piston area is not the same for the 2 sets of callipers, a bit of research reveals piston diameters:

Vmax 30mm x 1; 34mm x 1 (43 mm rear) total area = 1,615mm2
MT07 27mm x 1; 30mm x 1 (38 mm rear) total area = 1,280mm2 or 80%
YZF750 27mm x 2; 25mm x 1 total area = 1,636mm2 or 101%

So there are 3 options:
1. do nothing
2. replace callipers and see how I get on with the lever travel/feel
3. as 2. but also replace brake and master cylinder (XJR1300 <= hard to find or FJR1300 <= do they have threaded hole for mirror as mirrors were fitted to the plastic fairing)
4. fit 6 pot Sumitomo which look a bit clunky but nothing else needs doing

I prefer the look of MT07 so decisions, decisions....

 

[robmac]

ZX14 radial master goes well with those calipers.

 

[02GF74]

ZX14 radial master goes well with those calipers.

yeah, but where do I screw in the mirrors?

 

[robmac]

yeah, but where do I screw in the mirrors?

Replace the clamp that holds the masters to the bar with one with the mirror mount.

 

[02GF74]

Replace the clamp that holds the masters to the bar with one with the mirror mount.

I've not seen any of those - care to list make/model or are these after market clamps?

 

[[email protected]]

https://www.google.com/search?ei=Tr...&ved=0ahUKEwi81dPyppPsAhU5lHIEHRaSCPYQ4dUDCA0

 

[82ndCowboy]

I went with Nison masters and Sumiotomos. I use bar end mirrors. But the Nison masters have mirror mounts.
The braking is so fricken smooth I can brake with one finger.
The pots are a Triumpth clutch resevoir.
There are many combinations that work well. The hardest part I found was making a decision on which way to go.
The Triumpth pots sealed the deal for me. I decided on them and worked backwards on what was compatible with them.
Got what I wanted.
Exceptional braking and parts that are in my black, red and chrome theme.

 

[02GF74]

cheers - nothing comes up when I search "nison master" - is that spelt correctly?
Callipers are 6 pot YZF750 which are Sumitomo correct?

 

[user 16790]

maybe nissin ?

 

[[email protected]]

Yes, Nissin is the company that makes brake products. Not Nison.
A company by the same name makes ramen noodles too.
Yes, YZF 750 Calipers. Yes, made by Sumitomo.
There is another bike these came on but don't remember the info.
US bike fitment is below.

This Yamaha 4FM-2580U-30-00 CALIPER ASSEMBLY (RIGHT) Not Available fits the following models and components:

Yamaha Motorcycle 1998 YZF750RKC Front Brake-Caliper

Yamaha Motorcycle 1994 YZF750RF Front Brake-Caliper

Yamaha Motorcycle 1996 YZF750RH Front Brake-Caliper

Yamaha Motorcycle 1994 YZF750RFC Front Brake-Caliper

Yamaha Motorcycle 1996 YZF750RHC Front Brake-Caliper

Yamaha Motorcycle 1997 YZF750 - YZF750RJC Front Brake-Caliper

Yamaha Motorcycle 1997 YZF750 - YZF750RJ Front Brake-Caliper

Yamaha Motorcycle 1998 YZF750RK Front Brake-Caliper

Yamaha Motorcycle 1998 YFZ50RK Front Brake-Caliper

 

[Mxcalifa]

That is correct. The R1 calipers will NOT fit without adapters. Here's the options we provide:
Front:
Option 1 - DUAL Hayabusa Conversion
$60 - Adapters
$150 - Used 298 mm Rotors (I have some new available as well for varying pricing)
$150 - Pair Used Hayabusa Calipers
$80 ($40 set) - New Pads
*Optional - $110-150 - Pair Brake Lines (or 3 line kit - price varies depending on the option chosen)

Option 2 - SINGLE Hayabusa Conversion:
$40 - Adapter
$175 - 320mm Aftermarket Rotor
$100 - Used Single Hayabusa Caliper
$40 - New Pads
*Optional - $50-$80 - Single Brake Line
The advantage is cheaper cost then doing as a pair and less reciprocating mass for even better handling.

Option 3 - Dual Nissin 4 Piston:
This setup doesn't work as well as the other options but is less expensive and still better then the 2 piston brakes.
$60 - Adapters
Reuse your 280mm Rotors (or get vented aftermarkets we have available)
$50-$150 Used Calipers
$70 ($35 ea) - New Pads
$110-150 - Pair Brake Lines (or 3 line kit - price varies depending on the option chosen)
Some of the listed calipers require longer brake lines depending on if you have a lowered or stock height bike.



Rear:
Option 1 - Relocation Bracket
$45 - Single Relocation Bracket to use OEM caliper with 298mm rotor size.
$100 - Good used OEM 298mm rotor (Other new ones available too).
*Optional - $50-$60 - Braided Brake Line

Option 2 - Hayabusa Conversion
$40 - Single Bracket - You must Modify (I have pics of what to grind for these to fit)
$100 - Good used OEM 298mm rotor (Other new ones available too).
$100 - Single Hayabusa Caliper
$40 - New Pad Set
*Optional - $50-$60 - Braided Brake Line

Option 3 - R1 Conversion
$150 - Custom Rear Brake Mount
$50-$150 - Used R1 Caliper (price depends on year/condition)
$100 - Good used OEM 298mm rotor (Other new ones available too).
$40 - New Pads
*Optional - $50-$60 - Braided Brake Line

Hi, I am new here and looking to upgrade my front brake ( 1989 Vmax ) with the Hayabusa conversation #1, do you have a pair of used calipers and adapters to sell ? Also need a new brake pads to this caliper too ! I have the front discs from a 2003 to use with this kit ! Thank you

 

[Fire-medic]

Contact Sean Morley [email protected]

 

[Mxcalifa]

Contact Sean Morley [email protected]

Thank you!

 

[Fire-medic]

There is another bike these came on but don't remember the info.

The last several years of the FZR1000