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Help Brake master cylinder sleeving?

Discussion in 'Tyres Wheels and Brakes' started by James P, Feb 8, 2020.

  1. James P

    James P Active Member

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    Can anyone recommend a firm in Australia (preferably in Sydney) which is experienced in sleeving master cylinders? I want to have a 14mm front brake master cylinder sleeved to 11mm.

    I've done some internet research but the resulting info was pretty old, so I'm hoping someone can offer some recent testimonials.

    I understand that the process was pioneered by Halray of Lismore. The company is still in business, but now only makes the tools and equipment for carrying out the work. I also understand that there are now many clutch & brake shops which offer the service (likely using the Halray gear), but I haven't come across any motorcycle-related reports.

    Imagining the work involved, I thought I might even be able to do it myself. However, there could be some pitfalls which I don't fully appreciate. If the cost is reasonable, I'd rather have it done by someone who has done it before! Any input welcome.

    Thanks & regards,
    James
     
  2. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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  3. 2valve

    2valve Well-Known Member

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    Hi had a master cylinder sleeved many years ago , can't remember the company but it was in WA.
     
  4. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    It would be far cheaper to find a cylinder from another bike in the smaller size. What are you trying to achive? Do you want it for front or rear? Bit more info would help.
    Brembo make an 11mm brake m/c, also lots of dirt bikes and chinese pit bikes use that size.
     
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  5. James P

    James P Active Member

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    Thanks for the replies all. I am at the 'sleeving stage' because I can't find a suitable 11mm master cylinder. However, this may be an opportune moment to ask for help in that department.

    The master cylinder should be (or closely resemble) that of a Kawasaki KR-1 (14mm bore as standard). This has an integral reservoir which is round and also slightly angled (so that the reservoir is level, despite the handlebars being angled downwards). This is what it looks like:

    Bj1QVan.jpg


    Nissin makes a generic aftermarket 'retro' assembly which looks very similar, but it uses a different type of brake lever and the smallest bore available is 1/2". Kawasaki's recent W650 and W800 models also use a master cylinder which looks very similar, but the reservoir is not angled and the bore is also too big (14mm or 5/8" - can't remember which).

    The brake caliper I intend to use would work best with an 11mm master cylinder. I could use a brake caliper with larger pistons so as to make a 1/2" master cylinder suitable, but that would mean spending more money (on both master cylinder and caliper). If sleeving proves to be out-of-the-question, I could use a remote-reservoir Nissin 11mm master cylinder I already have, but that is not really the look I want. As far as I can tell, the sleeving option is very cost effective and would give me the desired appearance.

    If anyone knows of any 11mm front brake master cylinders which look like the one in the picture above, please let me know!

    I may also try following up some the (8+ year old) local sleeving leads I have learned about so far.

    Thanks & regards,
    James
     
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  6. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    Any 'good' machinist should be able to turn up a sleeve to reduce the dia, press fit it to your cylinder and hone to the correct size. Then you only need to drill the fill and bleed holes and buy yourself the right size piston and rubbers.
     
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  7. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    Found a list of 11mm brake master cylinder's

    Make,Model,Year
    Honda,CR125R A,1999
    Honda,CR125R A,2000
    Honda,CR125R A,2001
    Honda,CR125R A,2002
    Honda,CR125R A,2003
    Honda,CR125R A,2004
    Honda,CR125R A,2005
    Honda,CR125R A,2006
    Honda,CR125R A,2007
    Honda,CR250R A,1999
    Honda,CR250R A,2000
    Honda,CR250R A,2001
    Honda,CR250R A,2002
    Honda,CR250R A,2003
    Honda,CR250R A,2004
    Honda,CR250R A,2005
    Honda,CR250R A,2006
    Honda,CR250R A,2007
    Honda,CR500R A,1999
    Honda,CR500R A,2000
    Honda,CR500R A,2001
    Honda,CR80R A,2000
    Honda,CR80R A,2001
    Honda,CR80R A,2002
    Honda,CR80RB A,2000
    Honda,CR80RB A,2001
    Honda,CR80RB A,2002
    Honda,CR85R A,2003
    Honda,CR85R A,2004
    Honda,CR85R A,2005
    Honda,CR85R A,2006
    Honda,CR85R A,2007
    Honda,CR85RB A,2003
    Honda,CR85RB A,2004
    Honda,CR85RB A,2005
    Honda,CR85RB A,2006
    Honda,CR85RB A,2007
    Honda,CRF150R,2012
    Honda,CRF150R 2A,2009
    Honda,CRF150R A,2007
    Honda,CRF150R A,2008
    Honda,CRF150R A,2009
    Honda,CRF150R A,2012
    Honda,CRF150RB 2A,2009
    Honda,CRF150RB A,2007
    Honda,CRF150RB A,2008
    Honda,CRF150RB A,2009
    Honda,CRF150RB A,2012
    Honda,CRF250R,2012
    Honda,CRF250R A,2004
    Honda,CRF250R A,2005
    Honda,CRF250R A,2006
    Honda,CRF250R A,2009
    Honda,CRF250R A/A,2004
    Honda,CRF250R A/A,2005
    Honda,CRF250R A/A,2006
    Honda,CRF250R A/B,2005
    Honda,CRF250R A/B,2006
    Honda,CRF250X A,2004
    Honda,CRF250X A,2005
    Honda,CRF250X A,2006
    Honda,CRF250X A,2007
    Honda,CRF250X A,2008
    Honda,CRF250X A,2009
    Honda,CRF250X A,2012
    Honda,CRF250X A/A,2005
    Honda,CRF250X A/A,2006
    Honda,CRF250X A/A,2007
    Honda,CRF250X A/A,2008
    Honda,CRF250X A/B,2006
    Honda,CRF250X A/B,2007
    Honda,CRF250X AC,2004
    Honda,CRF250X AC,2005
    Honda,CRF250X AC,2006
    Honda,CRF250X AC,2007
    Honda,CRF250X AC,2008
    Honda,CRF250X AC,2009
    Honda,CRF250X AC,2012
    Honda,CRF250X AC/A,2005
    Honda,CRF250X AC/A,2006
    Honda,CRF250X AC/A,2007
    Honda,CRF250X AC/A,2008
    Honda,CRF250X AC/B,2007
    Honda,CRF450R,2012
    Honda,CRF450R 2A,2008
    Honda,CRF450R 2A/A,2008
    Honda,CRF450R A,2002
    Honda,CRF450R A,2003
    Honda,CRF450R A,2004
    Honda,CRF450R A,2005
    Honda,CRF450R A,2006
    Honda,CRF450R A,2007
    Honda,CRF450R A,2008
    Honda,CRF450R A/A,2004
    Honda,CRF450R A/A,2005
    Honda,CRF450R A/A,2006
    Honda,CRF450R A/A,2007
    Honda,CRF450R A/A,2008
    Honda,CRF450R A/B,2005
    Honda,CRF450X A,2005
    Honda,CRF450X A,2006
    Honda,CRF450X A,2007
    Honda,CRF450X A,2008
    Honda,CRF450X A,2009
    Honda,CRF450X AC,2005
    Honda,CRF450X AC,2006
    Honda,CRF450X AC,2012
    Honda,XR250R A,2000
    Honda,XR250R A,2001
    Honda,XR250R A,2002
    Honda,XR250R A,2003
    Honda,XR250R A,2004
    Honda,XR250R A/A,2004
    Honda,XR250R A/B,2004
    Honda,XR250R AC,2000
    Honda,XR250R AC,2001
    Honda,XR250R AC,2002
    Honda,XR250R AC,2003
    Honda,XR250R AC,2004
    Honda,XR250R AC/A,2004
    Honda,XR250R AC/B,2004
    Honda,XR400R A,2000
    Honda,XR400R A,2001
    Honda,XR400R A,2002
    Honda,XR400R A,2003
    Honda,XR400R A,2004
    Honda,XR400R A/A,2003
    Honda,XR400R A/A,2004
    Honda,XR400R A/B,2004
    Honda,XR400R A/C,2004
    Honda,XR400R AC,2000
    Honda,XR400R AC,2001
    Honda,XR400R AC,2002
    Honda,XR400R AC,2003
    Honda,XR400R AC,2004
    Honda,XR400R AC/A,2003
    Honda,XR400R AC/A,2004
    Honda,XR400R AC/B,2004
    Honda,XR400R AC/C,2004
    Honda,XR650R A,2000
    Honda,XR650R A,2001
    Honda,XR650R A,2002
    Honda,XR650R A,2003
    Honda,XR650R A,2004
    Honda,XR650R A,2005
    Honda,XR650R A,2006
    Honda,XR650R A,2007
    Honda,XR650R A/A,2003
    Honda,XR650R A/A,2005
    Honda,XR650R A/B,2005
    Honda,XR650R AC,2000
    Honda,XR650R AC,2001
    Honda,XR650R AC,2002
    Honda,XR650R AC,2003
    Honda,XR650R AC,2004
    Honda,XR650R AC,2005
    Honda,XR650R AC,2006
    Honda,XR650R AC/A,2003
    Honda,XR650R AC/A,2005
    Honda,XR650R AC/B,2005
    Husaberg,FC 450,2005
    Husaberg,FC 550,2005
    Kawasaki,KLX250SF,2010
    Kawasaki,KLX450A8F KLX450R,2008
    Kawasaki,KLX450A9F KLX450R,2009
    Kawasaki,KX100-D1 KX100,2001
    Kawasaki,KX100-D2 KX100,2002
    Kawasaki,KX100-D3 KX100,2003
    Kawasaki,KX100-D4 KX100,2004
    Kawasaki,KX100-D5 KX100,2005
    Kawasaki,KX100D6F KX100,2006
    Kawasaki,KX100D7F KX100,2007
    Kawasaki,KX100D8F KX100,2008
    Kawasaki,KX100D9F KX100,2009
    Kawasaki,KX100D9FA KX100 Monster Energy,2009
    Kawasaki,KX125-L3 KX125,2001
    Kawasaki,KX125-L4 KX125,2002
    Kawasaki,KX125-M1 KX125,2003
    Kawasaki,KX125-M2 KX125,2004
    Kawasaki,KX125-M3 KX125,2005
    Kawasaki,KX250,2010
    Kawasaki,KX250-L3 KX250,2001
    Kawasaki,KX250-L4 KX250,2002
    Kawasaki,KX250-M1 KX250,2003
    Kawasaki,KX250-M2 KX250,2004
    Kawasaki,KX250-N1 KX250F,2004
    Kawasaki,KX250-N2 KX250F,2005
    Kawasaki,KX250-R1 KX250,2005
    Kawasaki,KX250R6F KX250,2006
    Kawasaki,KX250R7F KX250,2007
    Kawasaki,KX250T6F KX250F,2006
    Kawasaki,KX250T7F KX250F,2007
    Kawasaki,KX250T8F KX250F,2008
    Kawasaki,KX250W9F KX250F,2009
    Kawasaki,KX250W9FA KX250F Monster Energy,2009
    Kawasaki,KX250XAFB KX250F,2010
    Kawasaki,KX450D6F KX450F,2006
    Kawasaki,KX450D7F KX450F,2007
    Kawasaki,KX450D8F KX450F,2008
    Kawasaki,KX450E9F KX450F,2009
    Kawasaki,KX450E9FA KX450F Monster Energy,2009
    Kawasaki,KX450EAF KX450F,2010
    Kawasaki,KX500-E16 KX500,2004
    Kawasaki,KX85-A1 KX85,2001
    Kawasaki,KX85-A2 KX85,2002
    Kawasaki,KX85-A3 KX85,2003
    Kawasaki,KX85-A4 KX85,2004
    Kawasaki,KX85-A5 KX85,2005
    Kawasaki,KX85A6F KX85,2006
    Kawasaki,KX85A7F KX85,2007
    Kawasaki,KX85A8F KX85,2008
    Kawasaki,KX85A9F KX85,2009
    Kawasaki,KX85A9FA KX85 Monster Energy,2009
    Kawasaki,KX85AAF KX85,2010
    Kawasaki,KX85ABF KX85,2011
    Kawasaki,KX85ACF KX85,2012
    KTM,125 EXC,2001-2004
    KTM,125 SX,2001-2004
    KTM,125 SXS,2001-2002
    KTM,200 EXC,2000-2004
    KTM,200 MXC,2001-2003
    KTM,200 SX,2004
    KTM,250 EXC,2001-2004
    KTM,250 MXC,2000
    KTM,250 SX,2001-2004
    KTM,250 SXC,2003
    KTM,250 SXS,2001
    KTM,300 EXC,2001-2004
    KTM,300 MXC,2001-2003
    KTM,380 EXC,2001-2002
    KTM,380 SX,2001-2002
    KTM,400 MXC,2002
    KTM,400 SX,2001-2002
    KTM,450 EXC,2003-2004
    KTM,450 SX,2003-2004
    KTM,520 EXC,2001-2002
    KTM,520 SX,2001-2002
    KTM,525 EXC,2003-2004
    KTM,525 MXC,2003
    KTM,525 SX,2003-2005
    KTM,540 SXS,2001-2002
    KTM,625 SXC,2003-2004
    KTM,660 LC4 Rally,2001-2002
    KTM,EXC Racing,2003
    KTM,Rally Factory Replica,2003
    Suzuki,DR125SE,1994
    Suzuki,DR125SE,1995
    Suzuki,DR125SE,1996
    Suzuki,DR200SE,1996
    Suzuki,DR200SE,1997
    Suzuki,DR200SE,1998
    Suzuki,DR200SE,1999
    Suzuki,DR200SE,2000
    Suzuki,DR200SE,2001
    Suzuki,DR200SE,2002
    Suzuki,DR200SE,2003
    Suzuki,DR200SE,2004
    Suzuki,DR200SE,2005
    Suzuki,DR200SE,2006
    Suzuki,DR200SE,2007
    Suzuki,DR200SE,2008
    Suzuki,DR200SE,2009
    Suzuki,DR200SE,2013
    Suzuki,DR250SES,1990
    Suzuki,DR250SES,1991
    Suzuki,DR250SES,1992
    Suzuki,DR250SES,1993
    Suzuki,DR250SES,1994
    Suzuki,DR250SES,1995
    Suzuki,DR350,1993
    Suzuki,DR350,1995
    Suzuki,DR350S,1993
    Suzuki,DR350SE,1997
    Suzuki,DR350SE,1998
    Suzuki,DR350SE,1999
    Suzuki,DR350SET,1990
    Suzuki,DR350SET,1991
    Suzuki,DR350SET,1992
    Suzuki,DR350SET,1993
    Suzuki,DR350SET,1994
    Suzuki,DR350SET,1995
    Suzuki,DR350SET,1996
    Suzuki,DR-Z125 (DR-Z125L),2008
    Suzuki,DR-Z125 (DR-Z125L),2009
    Suzuki,DR-Z125 (DR-Z125LK3-LK4-LK5-LK6-LK7),2003
    Suzuki,DR-Z125 (DR-Z125LK3-LK4-LK5-LK6-LK7),2004
    Suzuki,DR-Z125 (DR-Z125LK3-LK4-LK5-LK6-LK7),2005
    Suzuki,DR-Z125 (DR-Z125LK3-LK4-LK5-LK6-LK7),2006
    Suzuki,DR-Z125 (DR-Z125LK3-LK4-LK5-LK6-LK7),2007
    Suzuki,DR-Z125L (DR-Z125L),2008
    Suzuki,DR-Z125L (DR-Z125L),2009
    Suzuki,DR-Z125L (DR-Z125LK3-LK4-LK5-LK6-LK7),2003
    Suzuki,DR-Z125L (DR-Z125LK3-LK4-LK5-LK6-LK7),2004
    Suzuki,DR-Z125L (DR-Z125LK3-LK4-LK5-LK6-LK7),2005
    Suzuki,DR-Z125L (DR-Z125LK3-LK4-LK5-LK6-LK7),2006
    Suzuki,DR-Z125L (DR-Z125LK3-LK4-LK5-LK6-LK7),2007
    Suzuki,DR-Z125L2 (DR-Z125L E28),2012
    Suzuki,DR-Z125L2 (DR-Z125L E33),2012
    Suzuki,DR-Z125L3 (DR-Z125LL3 E28),2013
    Suzuki,DR-Z125L3 (DR-Z125LL3 E33),2013
    Suzuki,DR-Z125LL2 (DR-Z125L E28),2012
    Suzuki,DR-Z125LL2 (DR-Z125L E33),2012
    Suzuki,DR-Z125LL3 (DR-Z125LL3 E28),2013
    Suzuki,DR-Z125LL3 (DR-Z125LL3 E33),2013
    Suzuki,DR-Z250,2001
    Suzuki,DR-Z250,2002
    Suzuki,DR-Z250,2003
    Suzuki,DR-Z250,2004
    Suzuki,DR-Z250,2005
    Suzuki,DR-Z250,2006
    Suzuki,DR-Z250,2007
    Suzuki,DR-Z400S,2000
    Suzuki,DR-Z400S,2001
    Suzuki,DR-Z400S,2002
    Suzuki,DR-Z400S,2003
    Suzuki,DR-Z400S,2004
    Suzuki,DR-Z400S,2005
    Suzuki,DR-Z400S,2006
    Suzuki,DR-Z400S,2007
    Suzuki,DR-Z400S,2008
    Suzuki,DR-Z400S,2009
    Suzuki,DR-Z400SL1,2011
    Suzuki,DR-Z400SL2,2012
    Suzuki,DR-Z400SL3,2013
    Suzuki,DR-Z400SM,2005
    Suzuki,DR-Z400SM,2006
    Suzuki,DR-Z400SM,2007
    Suzuki,DR-Z400SM,2008
    Suzuki,DR-Z400SML3,2013
    Suzuki,RM125,1993
    Suzuki,RM125,1995
    Suzuki,RM125M,1989
    Suzuki,RM125M,1990
    Suzuki,RM125M,1991
    Suzuki,RM125S,1992
    Suzuki,RM125S,1993
    Suzuki,RM125S,1994
    Suzuki,RM125S,1995
    Suzuki,RM250,1993
    Suzuki,RM250,1995
    Suzuki,RM250N (MODEL K-L-M),1989
    Suzuki,RM250N (MODEL K-L-M),1990
    Suzuki,RM250N (MODEL K-L-M),1991
    Suzuki,RM250N (MODEL K-L-M),1992
    Suzuki,RM250N (MODEL N),1989
    Suzuki,RM250N (MODEL N),1990
    Suzuki,RM250N (MODEL N),1991
    Suzuki,RM250N (MODEL N),1992
    Suzuki,RM250S,1993
    Suzuki,RM250S,1994
    Suzuki,RM250S,1995
    Suzuki,RM80,1996
    Suzuki,RM80,1997
    Suzuki,RM80,1998
    Suzuki,RM80,1999
    Suzuki,RM80,2000
    Suzuki,RM80,2001
    Suzuki,RM80 (MODEL K-L-M-N-P-R),1986
    Suzuki,RM80 (MODEL K-L-M-N-P-R),1987
    Suzuki,RM80 (MODEL K-L-M-N-P-R),1993
    Suzuki,RM80 (MODEL K-L-M-N-P-R-S),1995
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1986
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1987
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1988
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1989
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1990
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1991
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1992
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1993
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1994
    Suzuki,RM80S (MODEL K-L-M-N-P-R-S),1995
    Suzuki,RM85 (MODEL K2-K3-K4),2002
    Suzuki,RM85 (MODEL K2-K3-K4),2003
    Suzuki,RM85 (MODEL K2-K3-K4),2004
    Suzuki,RM85 (MODEL K2-K3-K4),2005
    Suzuki,RM85 (MODEL K2-K3-K4),2006
    Suzuki,RM85L (MODEL K2-K3-K4),2003
    Suzuki,RM85L (MODEL K2-K3-K4),2004
    Suzuki,RM85L (MODEL K2-K3-K4),2005
    Suzuki,RM85L (MODEL K2-K3-K4),2006
    Suzuki,RMX250,1993
    Suzuki,RMX250,1995
    Suzuki,RMX250T (MODEL K-L-M-N-P-R-S),1989
    Suzuki,RMX250T (MODEL K-L-M-N-P-R-S),1990
    Suzuki,RMX250T (MODEL K-L-M-N-P-R-S),1991
    Suzuki,RMX250T (MODEL K-L-M-N-P-R-S),1992
    Suzuki,RMX250T (MODEL K-L-M-N-P-R-S),1993
    Suzuki,RMX250T (MODEL K-L-M-N-P-R-S),1994
    Suzuki,RMX250T (MODEL K-L-M-N-P-R-S),1995
    Suzuki,RMX250T (MODEL K-L-M-N-P-R-S),1996
    Suzuki,RMX250T (MODEL T),1989
    Suzuki,RMX250T (MODEL T),1990
    Suzuki,RMX250T (MODEL T),1991
    Suzuki,RMX250T (MODEL T),1992
    Suzuki,RMX250T (MODEL T),1993
    Suzuki,RMX250T (MODEL T),1994
    Suzuki,RMX250T (MODEL T),1995
    Suzuki,RMX250T (MODEL T),1996
    Suzuki,RMX250W,1997
    Suzuki,RMX250W,1998
    Yamaha,OFF-ROAD - TT225L,1999
    Yamaha,OFF-ROAD - TT225LC,1999
    Yamaha,OFF-ROAD (Deep Purplish Blue Solid E) - TTR225L,1999
    Yamaha,RT180G,1995
    Yamaha,RT180H,1996
    Yamaha,RT180J,1997
    Yamaha,RT180K,1998
    Yamaha,TTR225 - TT225RN,2001
    Yamaha,TTR225 - TT225RNC,2001
    Yamaha,TTR225 - TTR225M,2000
    Yamaha,TTR225 - TTR225MC,2000
    Yamaha,TTR225 - TTR225P,2002
    Yamaha,TTR225 - TTR225PC,2002
    Yamaha,TTR225 - TTR225R,2003
    Yamaha,TTR225 - TTR225RC,2003
    Yamaha,TT-R225 - TTR225S,2004
    Yamaha,TT-R225 - TTR225SC,2004
    Yamaha,TTR225 (Deep Purplish Blue Solid E) - TTR225N,2001
    Yamaha,TTR230 - TTR230A,2011
    Yamaha,TT-R230 - TTR230T,2005
    Yamaha,TT-R230 - TTR230TC,2005
    Yamaha,TT-R230 - TTR230V,2006
    Yamaha,TT-R230 - TTR230W,2007
    Yamaha,TTR230 (DEEP PURPLISH BLUE SOLID E) - TTR230X,2008
    Yamaha,TTR230 (DEEP PURPLISH BLUE SOLID E) - TTR230Y,2009
    Yamaha,WR 250F - WR250FA,2011
    Yamaha,WR 450F - WR450FA,2011
    Yamaha,WR250F,2009
    Yamaha,WR250F - WR250FP,2002
    Yamaha,WR250F - WR250FR,2003
    Yamaha,WR250F - WR250FS,2004
    Yamaha,WR250F - WR250FT,2005
    Yamaha,WR250F - WR250FV,2006
    Yamaha,WR250F - WR250FW,2007
    Yamaha,WR250F - WR250FX,2008
    Yamaha,WR250F (DEEP PURPLISH BLUE SOLID E) - WR250FY,2009
    Yamaha,WR426F - WR426FP,2002
    Yamaha,WR450F - WR450FR,2003
    Yamaha,WR450F - WR450FS,2004
    Yamaha,WR450F - WR450FT,2005
    Yamaha,WR450F - WR450FW,2007
    Yamaha,WR450F - WR450FX,2008
    Yamaha,WR450F - WR450FY,2009
    Yamaha,XT350 - XT350M,2000
    Yamaha,XT350 - XT350MC,2000
    Yamaha,XT350A,1990
    Yamaha,XT350B,1991
    Yamaha,XT350BC,1991
    Yamaha,XT350D,1992
    Yamaha,XT350E,1993
    Yamaha,XT350F,1994
    Yamaha,XT350G,1995
    Yamaha,XT350H,1996
    Yamaha,XT350J,1997
    Yamaha,XT350JC,1997
    Yamaha,XT350K,1998
    Yamaha,XT350KC,1998
    Yamaha,XT350L (PURPLISH WHITE SOLID 1),1999
    Yamaha,XT350N,1985
    Yamaha,XT350S,1986
    Yamaha,XT350T,1987
    Yamaha,XT350U,1988
    Yamaha,XT350W,1989
    Yamaha,YZ 85 - YZ85A,2011
    Yamaha,YZ125 - YZ125P,2002
    Yamaha,YZ125 - YZ125R,2003
    Yamaha,YZ125 - YZ125S1,2004
    Yamaha,YZ125 - YZ125T1,2005
    Yamaha,YZ125 - YZ125V,2006
    Yamaha,YZ125 - YZ125W1,2007
    Yamaha,YZ250 - YZ250P,2002
    Yamaha,YZ250 - YZ250R,2003
    Yamaha,YZ250 - YZ250S1,2004
    Yamaha,YZ250 - YZ250T1,2005
    Yamaha,YZ250 - YZ250V,2006
    Yamaha,YZ250 - YZ250W1,2007
    Yamaha,YZ250F - YZ250FP,2002
    Yamaha,YZ250F - YZ250FR,2003
    Yamaha,YZ250F - YZ250FS,2004
    Yamaha,YZ250F - YZ250FT,2005
    Yamaha,YZ250F - YZ250FV,2006
    Yamaha,YZ250F 50TH ANNIVERSARY - YZ250FSPV,2006
    Yamaha,YZ426F - YZ426FP,2002
    Yamaha,YZ450F - YZ450FR,2003
    Yamaha,YZ450F - YZ450FS,2004
    Yamaha,YZ450F - YZ450FT,2005
    Yamaha,YZ450F - YZ450FV,2006
    Yamaha,YZ450F - YZ450FW,2007
    Yamaha,YZ450F 50TH ANNIVERSARY - YZ450FSPV,2006
    Yamaha,YZ85,2002
    Yamaha,YZ85 - YZ85P,2002
    Yamaha,YZ85 - YZ85R,2003
    Yamaha,YZ85 - YZ85S,2004
    Yamaha,YZ85 - YZ85T,2005
    Yamaha,YZ85 - YZ85V,2006
    Yamaha,YZ85 - YZ85W1,2007
    Yamaha,YZ85 - YZ85X,2008
    Yamaha,YZ85 - YZ85Z,2010
    Yamaha,YZ85 (DEEP PURPLISH BLUE SOLID E) - YZ85Y,2009
    Yamaha,YZ85Z,2010
    Yamaha,ZUMA - YW50AL,2010
    Yamaha,Zuma - YW50T,2005
    Yamaha,Zuma - YW50X,2008
    Yamaha,ZUMA - YW50XB,2008
    Yamaha,ZUMA - YW50XL,2008
    Yamaha,ZUMA - YW50ZB,2010
    Yamaha,ZUMA - YW50ZY,2010
    Yamaha,ZUMA (BLACK METALLIC X) - YW50YB,2009
    Yamaha,ZUMA (DEEP PURPLISH BLUE METALLIC C) - YW50YL,2009
     
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  8. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    My Bike:
    1938 Royal Enfield 250, CF 250 V5 and 650TK, XL250, CBR250, plus a few others.
    So there is a few to choose from then?
     
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  9. pete05

    pete05 Member Premium Member

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    My Bike:
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    You could try these guys they have been around for a while and did excellent work on my car clutch master cylinder.
    If they don't do it they may be able to point you in the right direction.

    http://sbcs.net.au/
     
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  10. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    You must surely qualify as a Google Search Deity with that - awesome work

     
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  11. Andych

    Andych Senior Member Premium Member

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    The problem with trying to sleeve to a new size is that there are 2 parts to the sizing of the master cylinder piston.
    The area of the piston is for the correct force on the caliper piston.. larger diameter means slightly less pressure is required for the equivalent pad pressure... and then there is the stroke of the piston (volume of fluid moved). If the stroke or total movement of the piston isnt enough you wont have enough brake force. This is what happens when people change to twin disc setups and dont change from the single disc master cylinder and wonder why their brake performance is worse than with a single disc.
    The other issue is as @Murdo mentioned and that is finding the right piston and seals to mate up to the fluid holes etc in the master cylinder you are going to use, you might get lucky but
    Normally you would only sleeve a master cylinder that was severely pitted so you could go back to standard piston and seals.
    If the Nissin unit is 1/2" (12mm nominal) I would use that.. it will maybe reduce your brake pressure a little but probably wont be noticeable.
     
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  12. James P

    James P Active Member

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    Thanks everyone for your suggestions - especially my67xr for that list :thumb_ups:. Having briefly skimmed over the list, I think most (even all?) of the bikes listed have integral reservoirs, but all of the ones I am familiar with are rectangular-ish. I forgot to mention that an additional requirement is the ability to fit the standard front brake light switch - a facility which (I think) all of the motocross bikes haven't got. All of the road-registerable bikes should have it though.
    I have already obtained a suitable Nissin 11mm piston kit which will work with the KR-1 master cylinder (MC just needs sleeving and a 1.5mm counterbore to fit the piston retaining washer under the circlip). However, there will be some difficulty in making an adaptor bracket for the caliper I originally wanted to use. Although the problem is not insurmountable, I am looking around for other calipers which may be better suited (and hopefully cheap!). As such, I won't be making any firm decisions about the master cylinder until I have decided on the caliper.
    If there is anything interesting to tell, I'll let you know!

    Thanks again & regards,
    James
     
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