ADVrider

Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 02-24-2015, 06:47 AM   #1
bobmoz OP
n00b
 
Joined: Feb 2015
Location: cornwall UK
Oddometer: 6
Brembo P2 F08 calipers (will they fit)

Im have a bit of a mare trying to source new brakes for my twin disc 81 r65.
It currently has GS750 calipers and some big nasty brackets. It originally had Brembo calipers and I would like to replace with brembos again.
The problem I have is second hand ones are hard to find and seem to be around 70, however I can source P2 F08 calipers from a guzzi site for 100 each.
Will they fit?
If so I may as well spend a little extra and have brand new...
Many thanks
bobmoz is offline   Reply With Quote
Old 02-24-2015, 07:22 AM   #2
blaine.hale
Beastly Adventurer
 
blaine.hale's Avatar
 
Joined: Feb 2009
Location: Atlanta, Ga
Oddometer: 3,171
Dang, if I were home this week I'd try. I don't think they will but I have an r65 and a couple f08s laying around for the Ducati and Guzzi.
__________________
1974 BMW R90 /6
1968 Bultaco Matador MK3
1973 BMW R75 /5 Toaster LWB
1969 Bultaco Bandido MK2
2013 Husqvarna Terra TR650
blaine.hale is offline   Reply With Quote
Old 02-24-2015, 07:33 AM   #3
bobmoz OP
n00b
 
Joined: Feb 2015
Location: cornwall UK
Oddometer: 6
Haha, thanks anyway.
Im thinking if they did, I would easily be able to find someone else talking about it but so far google has turned up nothing
bobmoz is offline   Reply With Quote
Old 02-24-2015, 07:51 AM   #4
Solo Lobo
airhead or nothing
 
Solo Lobo's Avatar
 
Joined: Mar 2004
Location: Shoreline, WA
Oddometer: 8,979
Here's my question since we are talking about R65 Brembo's

I have an 1982 LS that will need the calipers re-built. I see that the R65 Brembo's are unique to R65's as are the caliper rebuild kits.

For those who don't know already, sourcing Brembo re build kits (and pistons) from Guzzi/Ducati parts suppliers is cheaper than going with BMW parts.

So, my question is, are the pistons on the R65's unique, meaning that the R65-specific caliper rebuild kit is required or will a rebuild kit from another Guzzi/Ducati application work in the R65 calipers?
__________________
"punk rocks what it's all about" - J. Strummer

Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
R65LazaruS
So I sold my GS and went shopping for a G/S!
Solo Lobo is offline   Reply With Quote
Old 02-24-2015, 08:09 AM   #5
blaine.hale
Beastly Adventurer
 
blaine.hale's Avatar
 
Joined: Feb 2009
Location: Atlanta, Ga
Oddometer: 3,171
Quote:
Originally Posted by SOLO LOBO View Post
Here's my question since we are talking about R65 Brembo's

I have an 1982 LS that will need the calipers re-built. I see that the R65 Brembo's are unique to R65's as are the caliper rebuild kits.

For those who don't know already, sourcing Brembo re build kits (and pistons) from Guzzi/Ducati parts suppliers is cheaper than going with BMW parts.

So, my question is, are the pistons on the R65's unique, meaning that the R65-specific caliper rebuild kit is required or will a rebuild kit from another Guzzi/Ducati application work in the R65 calipers?
I doubt they're unique. Brembo usually has a model number stamped on them somewhere or it can be looked up somewhere. In my experience, you just grab the model and find a kit on ebay or one of the duc/goose sites. The f08 is obviously the most common out there.
__________________
1974 BMW R90 /6
1968 Bultaco Matador MK3
1973 BMW R75 /5 Toaster LWB
1969 Bultaco Bandido MK2
2013 Husqvarna Terra TR650
blaine.hale is offline   Reply With Quote
Old 02-24-2015, 08:18 AM   #6
chasbmw
Beastly Adventurer
 
Joined: Feb 2006
Location: Bath Uk
Oddometer: 2,283
Quote:
Originally Posted by SOLO LOBO View Post
Here's my question since we are talking about R65 Brembo's

I have an 1982 LS that will need the calipers re-built. I see that the R65 Brembo's are unique to R65's as are the caliper rebuild kits.

For those who don't know already, sourcing Brembo re build kits (and pistons) from Guzzi/Ducati parts suppliers is cheaper than going with BMW parts.

So, my question is, are the pistons on the R65's unique, meaning that the R65-specific caliper rebuild kit is required or will a rebuild kit from another Guzzi/Ducati application work in the R65 calipers?
Surely the R65 calipers are made by ATE, just look like Brembos?
__________________
Charles
http://i46.photobucket.com/albums/f1...ps6e61ae2e.jpg
R90s 1070 replica, R90/6, 1958 R50
1971 Commando Fastback
chasbmw is offline   Reply With Quote
Old 02-24-2015, 08:21 AM   #7
Solo Lobo
airhead or nothing
 
Solo Lobo's Avatar
 
Joined: Mar 2004
Location: Shoreline, WA
Oddometer: 8,979
Quote:
Originally Posted by chasbmw View Post
Surely the R65 calipers are made by ATE, just look like Brembos?

ATE's were the early R65's, then they went to Brembo
__________________
"punk rocks what it's all about" - J. Strummer

Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
R65LazaruS
So I sold my GS and went shopping for a G/S!
Solo Lobo is offline   Reply With Quote
Old 02-24-2015, 08:25 AM   #8
Solo Lobo
airhead or nothing
 
Solo Lobo's Avatar
 
Joined: Mar 2004
Location: Shoreline, WA
Oddometer: 8,979
Quote:
Originally Posted by blaine.hale View Post
I doubt they're unique. Brembo usually has a model number stamped on them somewhere or it can be looked up somewhere. In my experience, you just grab the model and find a kit on ebay or one of the duc/goose sites. The f08 is obviously the most common out there.
I'll check for a number.

I did find the Brembo part number for the calipers (which are unique to R65's, but the pistons and seals may not be).

Right 20.3681.11
Left 20.3682.21

I've emailed a few places to try and get the Brembo part numbers for the rebuild kits
__________________
"punk rocks what it's all about" - J. Strummer

Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
R65LazaruS
So I sold my GS and went shopping for a G/S!
Solo Lobo is offline   Reply With Quote
Old 02-24-2015, 09:44 AM   #9
Rob Farmer
Beastly Adventurer
 
Rob Farmer's Avatar
 
Joined: Aug 2002
Location: Loughborough, Leicestershire. England
Oddometer: 5,760
Found this on a Laverda Forum http://www.laverdaforum.com/forum/in...?topic=80991.0

if you did decide to go for it -

Steine dinse sell them for the equivalent of 95 you will have postage on top though http://www.stein-dinse.biz/Brembo/Br...rear::850.html
Rob Farmer is offline   Reply With Quote
Old 02-24-2015, 11:39 AM   #10
halflive
Gnarly Adventurer
 
halflive's Avatar
 
Joined: Apr 2009
Oddometer: 360
A08 is the size of the caliper and corresponding pistons. These are very common. The same calipers are fitted on Ducati, Laverda, Moto Guzzi and BMW's.
They where fitted on airheads from 1981 and all two valve K-series.
It can't be hard to find a used pair. Even the later four piston calipers fitted on the multi valve beemers should fit, although i haven't tried it myself.
halflive is offline   Reply With Quote
Old 02-24-2015, 01:13 PM   #11
bobmoz OP
n00b
 
Joined: Feb 2015
Location: cornwall UK
Oddometer: 6
thanks all,
i have found some 108mm centre laverda ones for 120 the pair, new!!! but a bit scared that for some reason they won't fit.
Also found this http://www.parts-for-bikes.de/index.php?id=304, they look exactly the same and these are marketed for r45 and r65s ???
bobmoz is offline   Reply With Quote
Old 02-24-2015, 09:14 PM   #12
mrclubike
Adventurer
 
mrclubike's Avatar
 
Joined: Aug 2014
Location: St Louis MO USA
Oddometer: 40
What makes Brembo ATE R65 calipers different is the piston Diameter
Brembo ATE is 36mm and Brembo F08 is 38mm which makes the rebuild kits not interchangeable
The F08 from a Guzzi has the same mounting as a Brembo or ATE from a R65 and are interchangeable as a complete assy

I installed a Brembo F08 (38mm from a Guzzi) and a 12mm master cyl and a Spiegler line
on my single rotor 82 R65 and it works great
The pull is firm and very positive feeling not mushy at all

This is the caliper I used
http://www.mgcycle.com/index.php?mai...oducts_id=1034
The ones you found look like the same 38mm
http://parts-for-bikes.de/shop/einze...86e76bd4e965d2

It also looks like this same supplier now has the dual bleeder Brembo they call it a F09 caliper
http://www.mgcycle.com/index.php?mai...oducts_id=4618
If you look in the BMW parts list you will see they reduced the diameters of the MC to increase the leverage on the front brake anyway

I was worried it would work also
I researched a lot and found all this info and then went ahead and did it
Here is another thread about his
http://advrider.com/forums/showthread.php?t=994506
__________________
1982 BMW R65

mrclubike screwed with this post 02-24-2015 at 09:53 PM
mrclubike is offline   Reply With Quote
Old 02-25-2015, 02:07 AM   #13
bobmoz OP
n00b
 
Joined: Feb 2015
Location: cornwall UK
Oddometer: 6
That exactly what I wanted to hear. Glad you tested the water for me and found it works fine!!
I will be ordering some today.
Very much appreciated.
Thanks
bobmoz is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 02:55 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2015