The BMW GS boxer twin thread

[That looks like fun]

Formerly known as Fred Dagg (Trevs brother)
I suspect the beemer photo is a stitch up, where is the conrod, piston, and big oil pool?
Other than that it looks good

[Padmei]

I will post some pics up later but took my front brake callipers apart today (well nearly).

The brake pistons or plungers are munted - really soft & crumbling. One won't come out. Anyway I can get the stuff form overseas however has anyone had any luck with a cheap relatively easy replacement with a different brand/ model.

I have seen al the flash billet twin disk conversions etc but bugger spending that kind of money- I find my brakes pretty OK.

[Eddieb]

I will post some pics up later but took my front brake callipers apart today (well nearly).

The brake pistons or plungers are munted - really soft & crumbling. One won't come out. Anyway I can get the stuff form overseas however has anyone had any luck with a cheap relatively easy replacement with a different brand/ model.

I have seen al the flash billet twin disk conversions etc but bugger spending that kind of money- I find my brakes pretty OK.

The RF900 conversion cost me about $170, about half each for the caliper and getting the bracket made, plus I needed to buy a couple of bolts. My seller included brake pads with the caliper though, many don't.

Otherwise find a 4 pot caliper off a K1100, they bolt straight up I believe and give the same benefit.

[Padmei]

Cheers Eddie

Just put up some pics on the other thread. Any advice is welcomed from those who know these bikes well as to what i may be missing doing or doing incorrectly - I'm in this to learn & it's a very cool project which I'm enjoying immensely.

http://www.advrider.com/forums/showt...0#post13802620

[igormortis]

Got the K bike/early oilhead caliper on mine. Bolt spacing is the same, just need to shave a little material off the mounting bosses. 1.5mm if I recall.

[BMWST?]

I will post some pics up later but took my front brake callipers apart today (well nearly).

The brake pistons or plungers are munted - really soft & crumbling. One won't come out. Anyway I can get the stuff form overseas however has anyone had any luck with a cheap relatively easy replacement with a different brand/ model.

I have seen al the flash billet twin disk conversions etc but bugger spending that kind of money- I find my brakes pretty OK.

brakes are barely ok,i will be doing an upgrade as soon as i find a suitable caliper,and a bigger disk will be next

[Padmei]

Just put up a post on olds cool re finding some 48mm brembo brake pistons - anyone here got any good ones floating around? Off a twin pot caliper (one each side).

[Eddieb]

So how many of you buggers are watchers on my PD auction on Trade Me?

[Taz]

Not I . I'm trying to buy a bike off trademe at the moment and the seller wont even answer my emails. Some people make it too hard

[Devil]

My 12GSA is on TM at the moment. There's a bike on there I want but cant do anything about till this one sells

[Eddieb]

OK. I have a suspiciously large number of watchers on my auction so supect there's a few off here keeping an eye on it.

[BMWST?]

Just put up a post on olds cool re finding some 48mm brembo brake pistons - anyone here got any good ones floating around? Off a twin pot caliper (one each side).

if my new caliper works out you can have my old caliper and the rebuild kit i got for a nominal fee

[Squiggles]

So how many of you buggers are watchers on my PD auction on Trade Me?

[igormortis]

[Padmei]

if my new caliper works out you can have my old caliper and the rebuild kit i got for a nominal fee

Sounds good but what caliper are you using? K4pot?

It sounds like upgrading the caliper may be a better long term option.
WHere can I get a 2nd hand caliper from? Kane has older ones but not new ones. Is there another BMW 2nd hand parts dealer in NZ or are people getting them from ebay overseas?