rt 125 brake pads

[robert mack]

hi all

i need to change both sets of pads as they are really worn. however, whats the best type?. GG or HH?. or do i go for HH in the front with GG in the rear?

mucho maracas

robert

[Jamie]

Rob,

I am looking at doing the same and did a little research and found this

Brake Pad Frictional Formulation
Brakes work on the crude principle of friction between two surfaces. To give a uniform measure of the frictional characteristics of a Brake Pad the SAE J866A test procedure is used to give a two chracter code e.g EE FF GG HH.

HH or GG

HH Pads.
These have the highest coefficient of Friction and are ideal for High performance motorcycles and race track use. Some modern performance motorcycles specify HH as standard. HH Pads can sometimes prove grabby, scary in the wet and ineffective in every day use when they fail to reach a good operating temperature.

GG Pads.
This grade of Pad is a great all rounder and will perform well in most conditions. GG are softer than HH pads and bed in quicker on worn discs.

Mixing HH and GG Pads.
Many manufacturer specify HH for the front of performance Motorcycles with GG in the rear. This is because GG pads can give you more feel and control of the back brake. It is not considered safe to use HH in the rear with GG pads in the front.

Obviously Pads are only as good as the condition of the whole braking system. When first used brake pads can sometimes give poor braking as residual moisture from manufacture process works its way out and the pads bed in. It is best to bed in pads with gentle use and very heavy initial use can result in glazing. A condition where the resins in the pad crystalize with resulting poor performance and squeal.

If you need to check it out try http://shop.wemoto.com/index.dyn?oid=5838905

Best of luck

Jamie

[robert mack]

hi jamie

thanks for the ebay add lol as for the pads, ordered 2 sets of GG pads from wemoto yesterday. been really busy bud but will post you that check tomorrow for the carb.

all the best

robert

[DAVID THOMPSON]

ebc fa197 or same as the little Kawasaki 125 chopper sold in the usa bn 125 i think
also some Kymco Scooters

[Jamie]

No worries.
Been away for a couple of days so not a problem

[robert mack]

right

i took the pistons out to give them a clean as they wouldnt release, now they wont move when im trying to bleed the brake!

aide moi!!!!

[DAVID THOMPSON]

there honda goldwing parts text me and we can email keith cross for details
dave

[robert mack]

does this include the brake piston seals??

[Norman Wade]

If you need any RT 125 brake parts (including seals), they are available from Graham's. See http://www.grahamsmotorcycles.com/MZ%20WEB%20FICHE%20FOLDER/MZ%20Micro%20fiche%20RT%20FRONT%20BRAKE.htm for parts and http://www.grahamsmotorcycles.com/MZ%20WEB%20FICHE%20FOLDER/MZ%20price%20file%202009Aa.pdf for prices.

Norman
http://www.mzskorpion.net

[robert mack]

thanks norman

already ordered seals from grahams, hopefully get them tomorrow. thanks for the info

[robert mack]

right

received seals today and fitted them. rear brake pedal is not as stiff as i hoped but both pistons are moving so i will find out later when i go to work

[DAVID THOMPSON]

my rear brake has been soft ever since i had to replace the brake light switch..
it was a pain to get the air out of it .
dave

[robert mack]

update

the rear calliper is binding on. both the disc and calliper were red hot tonight, losing serious power through it max 40mph in 6th gear if im lucky