Rear Caliper Crossover?

[RockefellerGG]

I've been searching, but no luck... Any idea what rear caliper might cross over to gasgas?

There's tons of information on brake pads... not so much on the caliper.

 

[GGRider01]

I've been looking for the same. Here's hoping for an answer. I'd like a 2 piston caliper on the rear one of these days.

 

[RockefellerGG]

I got no answers, so I started experimenting: The caliper from a 2004 KX250 bolted right on, but the location of the bleeder and banjo bolt are in different locations. I forgot to check to see if the pads are identical...

I installed an enduro engineering brake bracket and shark fin at the same time.

I could probably have used the KX brake hose, which has an angled banjo fitting, but this seems to fit ok.

My existing setup from a 2005 EC250:


My new setup from a 2004 KX 250F:

 

[RockefellerGG]

FYI - I picked up a a KX caliper that came with a KX bracket, and a hose for $25 on ebay. A lot cheaper than gasgas stuff!

 

[GGRider01]

This is very good info. Will add it to my notes.

I realize you're not looking, but I did find my dual piston rear calipers.. some at 50stunt.com, but only for KTMs and Husqvarna. None for Kawasakis, or I'd jump the gun and buy one and try it out. It looks like they're taking front calipers and making a bracket to fit them to the rear.. that is something I could look into as well.

 

[RockefellerGG]

I saw that they had brackets that are intended to add a second caliper (a front dual piston) to the rear, so that you could have a hand brake and footbrake controlled by separate levers, controlling separate calipers. Cool idea.

 

[RockefellerGG]

The Kawasaki brake caliper carrier doesn't look the same as the gasgas. I used the Kawasaki caliper on a gasgas carrier.

 

[95jersey]

I used a Yamaha WR MC for 1/2 the price on my 2014 300.

 

[RockefellerGG]

Good to know!

 

[GGRider01]

I saw that they had brackets that are intended to add a second caliper (a front dual piston) to the rear, so that you could have a hand brake and footbrake controlled by separate levers, controlling separate calipers. Cool idea.

If I ever feel the need to part with a bunch of money, I'll probably get a bracket made and just plug a front caliper into the rear brake master, and skip the single piston caliper completely.

Just curious, why did you replace your rear caliper? Mine is weak.. even after reverse bleeding a quart of DOT4 through it. Not losing any fluid. Maybe just a rebuild but god forbid finding which kit works.

 

[gasgasman]

http://motocrossactionmag.com/bike-tests/honda-tests/mxa-team-tested-braking-oversized-crf-rear-brake-caliper

 

[GGRider01]

http://motocrossactionmag.com/bike-tests/honda-tests/mxa-team-tested-braking-oversized-crf-rear-brake-caliper

Thanks for this.. CA1403 is the part number for GasGas.. They only list up to year 1999, so not sure on later bikes. Fairly confident it will work on my 2000.

Seeing as this page says the CA1403 fits several makes.. I wonder if it's safe to assume crossover between all these bikes.
http://www.braking.com/catalogue/dettaglio_prodotto.php?codice_articolo=CA1403

 

[RockefellerGG]

I've always had a weak rear brake. I've rebuilt the caliper, reverse bled it with a power bleeder, vibrated it, and upgraded to a SS line. Tried every trick I could find. Now that I've typed this out, I realize that I haven't rebuilt the master.

This is why I decided to try an alternate caliper. Before dropping $400+ I will mill out a new spacer/carrier and mount a dual piston caliper. Perhaps I'll use a front caliper, since I have a few laying around.

Interesting find: A few years of KTM 950s used a dual piston rear caliper. I'm hoping to get my hands on one and take some measurements.

 

[gasgasman]

Dual piston may be too powerful.

The master cylinder will have to be matched with the dual piston caliper.

 

[GGRider01]

I've always had a weak rear brake. I've rebuilt the caliper, reverse bled it with a power bleeder, vibrated it, and upgraded to a SS line. Tried every trick I could find. Now that I've typed this out, I realize that I haven't rebuilt the master.

This is why I decided to try an alternate caliper. Before dropping $400+ I will mill out a new spacer/carrier and mount a dual piston caliper. Perhaps I'll use a front caliper, since I have a few laying around.

Interesting find: A few years of KTM 950s used a dual piston rear caliper. I'm hoping to get my hands on one and take some measurements.

Same here. Let me know what you end up with. I'd prefer my rear brake operate like an on/off switch.