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Forum Home > Rewaco Trike Common Accessories / Parts > Grimaco Brakes

John Watson
Member
Posts: 3

mike at August 3, 2011 at 5:03 AM

what year and model is your trike? first all Rewaco's master cylinders are from cars,

nothing wrong with that. you mention the word pot and you have two, do you mean you have two martster cylinders?as for the front brake caliper are deliberately small so it acts like a compensator say 70% 30%more than 30% on the front brake would be extremely dangerous when breaking hard, and they do get hot.

if you're not sure about  your front brake temperaturetry   Try driving  a couple of miles without using the brake pedal ( use your gear box and hand break to stop) then checked the temperature off the front brake, it may be slightly warm but if it's hot you have a problem with the caliper binding up.(legal bit, you do this entirely at your own risk)   Cheers Mike

Hi Mike John here.  You mention that all master cylinders are from cars thats cool and good.

I have a HS4 with discs on the rear.  Its got 2 circuits one for the front and one for the rear the trike is around 2007 do you know what car the master cylinder is from mine has a problem and I want to replace itThanks

June 24, 2018 at 5:11 AM Flag Quote & Reply

Max
Member
Posts: 33

Hi.Just to let you know, Here is a parts list for the front Grimeca caliper on most trikes.I posted this list a few years ago.

Caliper is Grimeca P5. as used on Moto Guzzi & laverda

Caliper O/haul Kit Grimeca P5 Style Part No. 31659065

Caliper Plastic Pad (Cap)Cover. Part No.31654765

Caliper Pin Kit. Part No.31659165

Parts from motomeccaspares.com.

Caliper Piston Kit - Pistons 32Mm X 16Mm - Seals 38X32X3.2

Part No. VB20358.

Master Cylinder:- Fiat Uno. Regata, Ritmo MkII, / Seat-Ibiza,Malaga, Ronda,

DELPHI PART NUMBER LM70026

As you can tell Rewaco does not make brakes, so they get what they can from the makers.It's a matter of finding out what they use. Rewaco is not going to tell you, as they want to get you to buy from them.You can get a master cylinder for around £20. See how much Rewaco want.  Check out the price of the Delphi Part Number on Ebay.


July 11, 2018 at 4:44 AM Flag Quote & Reply

John Watson
Member
Posts: 3

Max at July 11, 2018 at 4:44 AM

Hi.Just to let you know, Here is a parts list for the front Grimeca caliper on most trikes.I posted this list a few years ago.

Caliper is Grimeca P5. as used on Moto Guzzi & laverda

Caliper O/haul Kit Grimeca P5 Style Part No. 31659065

Caliper Plastic Pad (Cap)Cover. Part No.31654765

Caliper Pin Kit. Part No.31659165

Parts from motomeccaspares.com.

Caliper Piston Kit - Pistons 32Mm X 16Mm - Seals 38X32X3.2

Part No. VB20358.

Master Cylinder:- Fiat Uno. Regata, Ritmo MkII, / Seat-Ibiza,Malaga, Ronda,

DELPHI PART NUMBER LM70026

As you can tell Rewaco does not make brakes, so they get what they can from the makers.It's a matter of finding out what they use. Rewaco is not going to tell you, as they want to get you to buy from them.You can get a master cylinder for around £20. See how much Rewaco want.  Check out the price of the Delphi Part Number on Ebay.


Thanks a lot Max, sorry for the late reply, I do not seem to be getting notification

Cheers John


November 27, 2018 at 1:07 AM Flag Quote & Reply

Max
Member
Posts: 33

Hi john, I’m glad I could be of help. It sounds like you have the same setup as me & I had the same problem as you and many other on my 2008 HS5.

After I changed the Master cylinder the problem went.

Rewaco in their wisdom, decided to incline the master cylinder back, so that all the muck from the weather collects where the shaft enters the cylinder. Great.

Corrosion sets in & sure enough. Sticking brakes.

I used DELPHI PART NUMBER LM70026 for the master cylinder.(eBay) It’s a lot cheaper than Rewaco price & is basically the same unit.

If you can move the brake lever back with your heal when sat on the trike, then you may have a problem. It’s a sure sign that the piston is not returning fully. There should be a small amount of play. The system is simple enough. One thing not to do is put a larger calliper on the front. All it will do is lock the front end up. There is not enough weight on the front for the tire to stick.

Corrosion is the biggest problem. I also found that the pivot points for both the brake & clutch had rusted a little & this also didn’t help with the problem.

As we all know, as metal turns to rust it expands a little & causes the pivots to stick. Have a look at my other Posts. There is one on the HS4/5 rear brakes. This may help regarding pads for the rear. DP2680 for EBC or Ferodo FDB1491 are what I found fit my Trike.

 

Good luck & let us know how you get on.

 


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December 4, 2018 at 8:25 AM Flag Quote & Reply

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