Thumb rear brake for a v4

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thorny

thorny

Joined
Mar 29, 2018
Messages
253
Location
California
Fellow racers, did anyone install a thumb rear brake on a V4? Does anyone make a kit?

I really want to use rear brake to take advantage of extra braking capacity that comes with it, and slide by brake electronics, but I find it very awkward to be pressing down with the right foot than my ass is hanging off on the left side in left hand corners. COTA T12 and T1 are prime examples.
 
DStyleNZL said:
I looked into this once, saw the prices and stayed with the foot brake lol
Click to expand...

I am in the middle of getting this setup to work on my Hypermotard.

Right now I am using a mechanical setup with a mountain bike lever pulling a cable to a pedal extension.

I have grown to really depend on using rear brake past the point of the front brake release while trail braking and especially while going to throttle on the exit to help fine tune the line. Really eliminates some of the nerves when no longer on that front brake as you bring in the throttle.

I ordered the Qnium https://www.qnium.nl/index.php/prod...aster/21-rear-master-cylinder-side-side-banjo double tap rear master and will be pairing that with a magura HC1 left hand brake to go all hydraulic. Not cheap but does not break the bank either.

I tried to double tap the OEM brembo by welding in a fitting but could not get a good seal with aluminum brazing.

In any case, having rear brake at your fingertips is wonderful.

This is not a paid advertisement :)
 
Pard said:
I am in the middle of getting this setup to work on my Hypermotard.

Right now I am using a mechanical setup with a mountain bike lever pulling a cable to a pedal extension.

I have grown to really depend on using rear brake past the point of the front brake release while trail braking and especially while going to throttle on the exit to help fine tune the line. Really eliminates some of the nerves when no longer on that front brake as you bring in the throttle.

I ordered the Qnium https://www.qnium.nl/index.php/prod...aster/21-rear-master-cylinder-side-side-banjo double tap rear master and will be pairing that with a magura HC1 left hand brake to go all hydraulic. Not cheap but does not break the bank either.

I tried to double tap the OEM brembo by welding in a fitting but could not get a good seal with aluminum brazing.

In any case, having rear brake at your fingertips is wonderful.

This is not a paid advertisement :)
Click to expand...

Hey man. Thank you for all the info you provided, I'll do some research on it. Last time out in COTA there was a guy pitted next to me with his S1000RR, he had Speedycom thumb rear brake fitted and I wanted to explore options for a V4.
 
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Setup by Barni Racing on a V4

They told me it's Accossato, but I'm not sure
 

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KarlKani said:
did you get this all set up? How is it?
Click to expand...

Not sure why I am not getting notifications.

No, I have not. I have been trying to install the system since June. Originally I ordered the fork mount option and unfortunately it is not very compatible. I could not install it to my satisfaction.

I should be getting a bar mount any day now from Italy and I will give it a shot with that, but it has been very challenging to get this installed.

If I ever do, I will post. I haven't given up.
 
Gecko said:
Setup by Barni Racing on a V4

They told me it's Accossato, but I'm not sure
Click to expand...


I have the same switch and will Ben trying to install IMA system with the bar mount. So could be similar, tHis gives me hope.
 
thorny said:
Not sure why I am not getting notifications.

No, I have not. I have been trying to install the system since June. Originally I ordered the fork mount option and unfortunately it is not very compatible. I could not install it to my satisfaction.

I should be getting a bar mount any day now from Italy and I will give it a shot with that, but it has been very challenging to get this installed.

If I ever do, I will post. I haven't given up.
Click to expand...


OK, I gave up. IMA system is not compatible with a V4. I tried both mounts and it is not possible to make it right.
 
thorny said:
I ended up ordering this. Complete system with transparent red HEL brake line. Should be good :)
Click to expand...
Sorry to ask but what bike is it going on? I’m after a thumb brake too but I’m told they won’t fit on a panigale V4r due to the close proximity of the fairing when turning??
 
CraigP said:
Sorry to ask but what bike is it going on? I’m after a thumb brake too but I’m told they won’t fit on a panigale V4r due to the close proximity of the fairing when turning??
Click to expand...
I ran it on my 2018 Pani V4S. It was very cumbersome to manufacture the clamp to make it work. And it did reduce available steering angle. It’s been too much time to remember exact specifics but I think the effort isn’t worth it. And only for a dedicated race bike. I also couldn’t get used to using it, with the G forces of hard deceleration I couldn’t do it :)
 
thorny said:
I ran it on my 2018 Pani V4S. It was very cumbersome to manufacture the clamp to make it work. And it did reduce available steering angle. It’s been too much time to remember exact specifics but I think the effort isn’t worth it. And only for a dedicated race bike. I also couldn’t get used to using it, with the G forces of hard deceleration I couldn’t do it :)
Click to expand...
You've just saved me a load of messing around and money my mate!! I'll leave well alone then!!
 
CraigP said:
You've just saved me a load of messing around and money my mate!! I'll leave well alone then!!
Click to expand...
Agree, you'll be better off with seeking improvements somewhere else.

One other application where it did work very well for me was left hand operated rear brake (standard lever above the clutch made by Rekluse) was on my KTM 500EXCF enduro bike. I found it very easy to use and it made me much quicker on a single track, also improved bike control in hard enduro situations and steep terrain. Obviously not the same application and not sure if a solution like this exists for a Panigale V4, but I think this is a much better brake control with a lever. The main problem is being able to package both clutch and brake masters in practically the same location. I think it was Marquez who was running rear brake lever on the left side at some point in time, but when you have a full factory squad at your disposal opportunities open up a little.
 
Why not use the 'scooter brake' system that changes the angle of the Clutch lever and puts an additional lever below it to actuate the rear brakes. After all, if you have quick shift and blip you hardly ever touch the clutch anyway.
 

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