Disc Brakes

[drtracr]

Anyone ever put disc brakes on a B/stone. I am wanting some very good brakes for my speed record attempt. Any suggestions on what to use.
JM

[BSOrion]

JM,

Where are you going to run?  Any more info. you want to share with us?  Is your bike all moded-out?

Orion

[drtracr]

Don't even have the bike yet, still searching for what I need, will be running at Maxton, NC.

[blue twin]

Awesome endeavor. Good luck!

[Toystoretom]

You could graft something like this onto your bike:

http://kansascity.craigslist.org/mcy/2325086424.html

I'm sure your local M/C salvage yard has something similar, or possibly even on your local Craigslist. Or have this guy dismantle this one and UPS it to you. Of course, you would have to do some machine work and adapt some different steering head bearings etc. but it can be done.

[scrambler]

I have done something like this a few times but not on a BS. Measure what you have and compare to these

I put this list together a few years ago and it made the rounds on the forums a few times.



   Upper: 22.5 x 41 x 12.5
   Lower: 24 x 41 x 12.5
Honda   MB-5-50 (82)
Honda   MR-50/K1 (74-75)
Honda   MT50Z, MTX50
Honda   NSF50F (90)
Honda   Z50A/K3-K5/RH/RJ, Z50A (71-76)
Honda   Z50R (79-87), Z50RD (86)
Honda   CR60R (83)
Honda   ATC70/K1 (73-74), ATC70 (78-85)
Honda   CL70/K1-K3 (69-73)
Honda   CT70/K1-K4 (69-76), CT70H/HK1 (70-73), CT70 (76-82)
Honda   SL70/K1 (71-73)
Honda   XL70 (74-76)
Honda   XL75 (77-79)
Honda   XR75 (73-78)
Honda   MB80, MBX80RFD/RSD
Honda   MTX80/C
Honda   XL80S (80-85)
Honda   XR80 (79-84), XR80RF-R (86-98)
Honda   ATC90 (75-85)
Honda   CS90
Honda   CT90 (68-79)
Honda   SL90 (69)
Honda   ST90K1-K4
Honda   CB/CL100/K1-K3 (76-78)
Honda   SL100/K1-K3 (70-73)
Honda   XL100/K1 (74-75), XL100/S (76-85)
Honda   XR100RP-R (85-98)
Honda   ATC110 (79-85)
Honda   CT110 (80-86)
Honda   XL110/S (76-85)
Honda   ATC125M (84-87)
Honda   CB125/S (76-85), CB125T/J (78-81), CB125TT (90)
Honda   CG125
Honda   CM125T/J (82-85)
Honda   CR125M/M1 (74-78)
Honda   CT125 (77), CT125H/J/K (87-89)
Honda   MBX125
Honda   MT125 (74-76), MT125R/RII (77-78)
Honda   SL125/K1/K2
Honda   TL125/K1/K2/S (73-76)
Honda   XL125K-3 (78-79), XL125S (79-85)
Honda   MR175K (75-77)
Honda   ATC185/S (80-83)
Honda   CM185C (78), CM185T (78-79)
Honda   XL185S (79-83), XL185SH/SJ/SK
Honda   XR185 (79)
Honda   ATC200 (79-83), ATC200E Big Red (82-84), ATC200S (84-85)
Honda   CM200T (80-82)
Honda   XR200 (80-83)
Honda   CB250N (Late Models)
Honda   CBX250F (85)
Honda   CM250C (82-86), CM250T (80-82), CMX250C/CD (85-87)
   Upper:30 x 55 x 17 
   Lower: 30 x 55 x 17   
Suzuki   GSXR600 (97-00)
Suzuki   GSXR750 (96-01)
Suzuki   TL1000R (98-00)
Suzuki   TL1000S (97-01)
Suzuki   GSXR1300R (99-00)
Yamaha   YZFR6 (99-01)
Yamaha   YZF-R1 (99-00)
   Upper: 25 x 47 x 15 
   Lower: 30 x 55 x 17   
Honda   CB750KZ/FZ
Honda   CB900FZ
Honda   CBX/Z
Honda   GL1000 (77-79), GL1000K3/Z
Kawasaki   KX125 (82-91)
Kawasaki   KDX200 (83-98)
Kawasaki   KX250A5-A7(79-81), KX250B1/C1/C2/D1/D2/E1/F1/G1/H1/H2 (82-91)
Kawasaki   KXT250A1/A2/B1/B2 (84-87)
Kawasaki   KDX420B1 (81)
Kawasaki   KX420A1/A2 (80-81)
Kawasaki   KDX450A1 (82)
Kawasaki   EX500B1-B4 (88-91)
Kawasaki   KX500A1/A2 (83-86) B1/B2 (85-86), C1/D1 (87-88), E1-E3/E4/E5 (89-93)
Kawasaki   ZG1200B1-B12 Voyager (87-98)
Suzuki   DR125SER/SES/SET/SEV (94-97)
Suzuki   RM125J
Suzuki   PE/RS175T-E (80-84)
Suzuki   DR200SET/SEV/ SEW (96-98)
Suzuki   DR250 (90-91), DR250S L/M/N/P/R /SES (90-95)
Suzuki   GN250Z/D/F (82-85), GN250Z-ER (81-95)
Suzuki   GSX250F M/N/P/R (91-94)
Suzuki   PE250T/X (80-81)
Suzuki   RG250G/FG (85)
Suzuki   RGV250K (88-89), RGV250M/N/P/R (91-94)
Suzuki   RM250J (88)
Suzuki   RS250T/X (80-81)
Suzuki   DR350 (90-98)
Suzuki   DR350S L-HR (90-94)
Suzuki   DR350SL/SM/SN/ SP/SER/SES/SET/SEV/SEW (90-98)
Suzuki   DR400T (80) DR400ST
Suzuki   GN400 (80), GN400T/TX/TZ (80-82) 
Suzuki   GSF400M (91-93), GS400 Bandit (91-93) 
Suzuki   GSX400EE/SE/EF/SF (85), GSX400ET/ST/EX/ SX/X
Suzuki   GSXR400F
Suzuki   PE400T/X (80-81)
Suzuki   GS450E T/X/Z/D (80-83)
Suzuki   GS450G Z/D/F(82-85), GS450L (80-88)
Suzuki   GS450TX/TXZ/TXD/TZ (81-83)
Suzuki   DR500X/Z/D (81-83)
Suzuki   DR/PE500T/X (80-81)
Suzuki   GS500E/EK/EV (89-00), GS500L (80-83)
Suzuki   RG500G
Suzuki   SP500X/Z (81-82)
Suzuki   GS550E (83), GS550EF (85), GS550ESE/ESF (84-86), GS550ESG (86)
Suzuki   GS550ET (80), GS550L (80-83), GS550LF/LG (85-86), GS550MZ (82), GS550TX (81)
Suzuki   GSF600 (1996-00)
Suzuki   GSX600FJ-FW (88-01)
Suzuki   GSXR600WN/WP (92-93)
Suzuki   RF600R (P/R) (93-94), RF600RR/RS /RT (94-96)
Suzuki   DR650RE R/UR (94)
Suzuki   DR650SN/SP (92-93)
Suzuki   GS650D/XD (83), GS650EX/EZ (81-82), GS650GL (81-83), GS650 GX/GZ/ GD (81-83), GS650 MD (83)
Suzuki   LS650F/P/G/J/K, LS650PS/PT/PV/PW Savage (95-01)
Suzuki   NX85D (83)
Suzuki   SV650  (99-00)
Suzuki   GS700EF/ESF (85)
Suzuki   GV700GLF (85)
Suzuki   VS700 (86-87)
Suzuki   DR750S/SU/J/K
Suzuki   GS750ED/ESD (83), GS750ET/EX/EZ (80-82),GS750LT/LX (80-81), GS750SD (83), GS750TZ/TD (82-83)
Suzuki   GSX750EF/F (85), GSX750ES D/E (83-84), GSX750F(89-92), GSX750FK-FT (89-96), GSX750S S/D (83)
Suzuki   GSXR750 (86-95), GSXR750W N/P/R
Suzuki   750T/X (81-82)
Suzuki   VS750G (88-91)
Suzuki   VS800GLN-GLT Intruder (92-01)
Suzuki   VX800L/M/N/P (90-94)
Suzuki   VZ800V/W Marauder (97-01)
Suzuki   GS850G/GL (79-83)
Suzuki   RF900RR/RS/RT/ RV (94-97)
Suzuki   GS1000C/EC/HC/N (78-79), GS1000ET (80), GS1000G/GL (80-81), GS1000L N (79)
Suzuki   GS1000LN/SN/ST (79-80), GS1000SZ (82), GS1000T/HT/ ET (80)
Suzuki   GS1100E (80-83), GS1100G/GL(82-83), GS1100GK (82-84), GS1100LT (80), GS1100SD (83)
Suzuki   GSX1100E/ES/EF, GSX1100E T/X (80-81)
Suzuki   GSX1100EE/ESF/EFF/EF/ESF/EFF (84), GSX1100F (90-93)
Suzuki   GSX1100FJ-FP (88-93), GSX1100G M/N/P/R (91-94)
Suzuki   GSX1100LT/ST (80), GSX1100 LN/SN (79), GSX1100S Z/D (82-83)
Suzuki   GSXR1100 (90-93), GSXR1100F (88-92), GSXR1100G-M (86-91), GSXR1100WP/WR/ WS/WT/WV (93-98)
Suzuki   GS1150EF/EG (85-86), GS1150ES3/ESE/ ESF (83-85)
Suzuki   GSX1150E (83-86)
Suzuki   GSF1200SV/SAV (97-01)
Suzuki   GV1200GLF/GLG (85-86)
Suzuki   GV1400G (86-89)
Suzuki   VS1400 (87-01)
Suzuki   VS1400GL H/R (87-01)
Suzuki   VL1500 (98-01)
Yamaha   BW80S/T/U/A (86-90)
Yamaha   YZ100J/K (82-83)
Yamaha   YZ125D-S (77-86)
Yamaha   IT175D-K (77-83)
Yamaha   IT200L/N/S (84-86)
Yamaha   IT250D/E/F/G/H/J/K (77-83)
Yamaha   TZ250F/G/H/J (79-82)
Yamaha   TZR250R
Yamaha   XT250L/LC (84)
Yamaha   YZ250D-T (77-87)
Yamaha   TT350S/T (86-87)
Yamaha   XT350N/NC-K/KC (85-98)
Yamaha   IT400D/E/F (77-79),
Yamaha   FZR400 (88-90)
Yamaha   YZ400D/E/F (77-79)
Yamaha   IT425G (80)
Yamaha   IT465H/J (81-82), YZ465G/H (80-81)
Yamaha   IT490K/L (83-84), YZ490J-A (82-90)
Yamaha   RZ500N (85)
Yamaha   XT550J/K (82-83)
Yamaha   FZR600 (89-99)
Yamaha   TT600L/N/S/T/U (83-88)
Yamaha   XT600L/LC-G/GC (84-95)
Yamaha   YZF600 (95-00)
Yamaha   XV650 (98-01)
Yamaha   FZ700T/TC (87), FZX700S/T/TC (86-87)
Yamaha   XJ700N/NC/S/SC/XN/XS/XSC (85-86)
Yamaha   XV700 Virago (84-87)
Yamaha   FZ750N/S/SC (85-86), FZ750U/UC (88)
Yamaha   FZR750RT/RU (87-88), FZR750R (90), FZX750 (87-89)
Yamaha   XS750 ALL (77-79)
Yamaha   XTZ750 (93)
Yamaha   XV750 Virago (88-97)
Yamaha   YZF750 (94-98)
Yamaha   XS850 ALL (80-81)
Yamaha   TDM850 (92-93)
Yamaha   XJ900RK (83), XJ900FN (85)
Yamaha   FZR1000 (87-91), FZR1000 EXUP (83-95)
Yamaha   XV1000 Virago (84-85)
Yamaha   FJ1100 (84-85)
Yamaha   XJ1100J (82)
Yamaha   XS1100ALL (78-81)
Yamaha   XV1100 Virago (86-97)
Yamaha   FJ1200 (86-91)
Yamaha   VMX1200 V-Max (85-97)
Yamaha   XVZ1200 Venture (83-85)
Yamaha   XVZ1300 Venture (86-93)
Yamaha   XVZ13 Royal Star
   Upper: 25 x 48 x 16
   Lower: 27 x 48 x 14   
Suzuki   RM125A/B/C (75-78)
Suzuki   PE175C/N (78-79)
Suzuki   GS250FW (85)
Suzuki   GSX250T/ET (80)
Suzuki   GT250A/B (76-77)
Suzuki   PE250C/N (78-79)
Suzuki   RM250A/B/C/C2
Suzuki   TM250K/L/M (73-75)
Suzuki   TS250 (70-79)
Suzuki   GS300LF/LZ/LD (82-85)
Suzuki   RM370A/B/C (76-77)
Suzuki   SP370 (78-79)
Suzuki   GT380K-B (73-77)
Suzuki   GS400B/C/EC (77-78)
Suzuki   RM400C (78)
Suzuki   SP400T (80)
Suzuki   TM/TS400 (73-77)
Suzuki   GS425N/EN (79)
Suzuki   GT500A/B (76-77)
Suzuki   RE-Rotary (75-76)
Suzuki   GS550B/C/EC (77-79)
Suzuki   GT550J-B (72-75)
Suzuki   GS750B/C/EC/N (77-79), GS750D C/N (78-79), GS750EN/ LN/LT (79-80)
Suzuki   GT750 (72-77)
   Upper: 25 x 48 x 13 
   Lower: 30 x 48 x 13     
Suzuki   RM100N/T/X (79-81)
Suzuki   RM125N/T (79-80)
Suzuki   RM250N/T (79-80)
Suzuki   RM400N/T (79-80)
Yamaha   L5T/L5TA-100 (69-70)
Yamaha   RD125B/C (75-76)
Yamaha   RD125LC
Yamaha   TA125 (Roadrace)
Yamaha   TD2/TD2B125 (70-71)
Yamaha   TR2/TR2B125 (70-71)
Yamaha   TZ125G (Roadrace) (80)
Yamaha   YB125E/F
Yamaha   RD200A/B/C (74-76)
Yamaha   YTM200N/ERN (84)
Yamaha   YTM225DRN/DRS (85-86)
Yamaha   YTM225DXL/DXN (84-85)
Yamaha   FZR250
Yamaha   RD250 /LC (73-82)
Yamaha   RD250YPVS (83-84)
Yamaha   SR250G/H/J/TH (80-82)
Yamaha   SRX250N (85), SRX250T/TC (87)
Yamaha   TD3/TR3-250 (Roadrace) (72)
Yamaha   TZ250 (73), TZ250C/D/E (76-78)
Yamaha   TZR250 (87-91)
Yamaha   XS250
Yamaha   XV250U-W (88-89), XV250A/AC (90), XV250G/GC/H/HC/J/JC (95-99)
Yamaha   R5/B/C (70-72),RD350 (73-79), RD350LC (80-82) 
Yamaha   RD350YPVS (83-84), RZ350L/N/NC (84-85)
Yamaha   TZ350C/D/E (74-78)
Yamaha   XS360C/D/2D (76-77)
Yamaha   RD400A/B/C/D (76-79)
Yamaha   XJ400 (80-85)
Yamaha   XS400E/F/2E/2F (77-79), XS400G/H/J/K (80-83), XS400RJ/RK (82-83), XS400SG/SH (80-82)
Yamaha   XV500 (83) XV535 (87-99)
Yamaha   XV535 (91-94), XV535H/N (89-90), XV535SE (88), XV535T/TC/U/A/ AC/EC/F/FC/G/GC/ SFC/SG/SGC/SH/SHC/SJ/SJC (87-97)
Yamaha   XJ550H/J/K/RH/RJ/RK (81-83)
Yamaha   FJ600L/LC/N/NC (84-85)
Yamaha   XJ600 (92-98)
Yamaha   YX600 (86-90)
   Upper: 25 x 43 x 11 
   Lower: 30 x 48 x 12     
Yamaha   DT50B, DT50MX, DT50U/W/A (88-90)
Yamaha   RD50MX (82), RX50K/L/MK (83-84)
Yamaha   YSR50T-E (87-93)
Yamaha   YZ50G (80)
Yamaha   JT1/JT2/JT2MX (71-72)
Yamaha   RD60/A/B (73-75)
Yamaha   YZ60H/J/KM (81-83)
Yamaha   DT80LC H/J/K (81-83), DT80MX
Yamaha   GT80A-G (74-80), GT1/GTMX80 (73), GTMXA/MXB/MXC 80 (77-79), MX80G/H/J (80-82)
Yamaha   RD80LC/MX(82)
Yamaha   TY80A/B Trials (74-75)
Yamaha   YZ80A-K (74-83)
Yamaha   HT1/HT1B/HT1BM90 (70-71)
Yamaha   AG100B
Yamaha   DT100A-K (74-83)
Yamaha   LT2/LT2M/LT2MX/LT3100 (72-73)
Yamaha   MX100A/B (74-75)
Yamaha   MX100F/H/J/K (79-83)
Yamaha   RS100B/C (75-76)
Yamaha   RT100A (90)
Yamaha   YZ100C/D/E/F/G/H (76-81)
Yamaha   AT1/AT1B/AT1C/ AT1E/AT1M/AT1MBAT1MX/AT2/AT2M/AT2MX/AT3/ 125 All (69-73)
Yamaha   DT125 All (74-81), DT125LC (82)
Yamaha   IT125G/H (80-81)
Yamaha   MX125A/B/C (74-76)
Yamaha   XT125J/K/KC (82-83)
Yamaha   YT125N (85)
Yamaha   YZ125A/B/C/X (74-76)
Yamaha   AG175B
Yamaha   CT1/CT2/CT3 175 All (69-73)
Yamaha   DT175A-H (74-81)
Yamaha   MX175A/B (74-75)
Yamaha   MX175G/H/J (79-81)
Yamaha   TY175B/C (75-76)
Yamaha   YT175J/K Atv(82-83)
Yamaha   YZ175C (76)
Yamaha   SR185H/J (81-82)
Yamaha   AG200
Yamaha   BW200N/S/ES/ET/ EU (85-88)
Yamaha   TW200 (87-92)
Yamaha   TYM200EX/EL (83-84)
Yamaha   XT200J/K/KC (82-83)
Yamaha   YTM200K/EK (83), YTM200K/L (83-84)
Yamaha   YTM225DXK (83)
Yamaha   DT1/DT1B/DT1CMX/DT1MX/DT1S/ DT1C/DT1E/DT2/ DT2MX/DT250A-F/DT3 250 (68-79)
Yamaha   MX250A/B (73-75)
Yamaha   TT/XT250G/H/J (80-82)
Yamaha   TY250A/C/D (74-77)
Yamaha   XT250G/H/J/K/KC (80-83)
Yamaha   XT250W (89)
Yamaha   YZ250A/B/C (74-87)
Yamaha   DT360A/B (74-75),
Yamaha   MX360/A (73-74)
Yamaha   RT1/RT1B/RTM/RT1MX360 (70-71)
Yamaha   RT2/RT3/RT2MX360 (72-73)
Yamaha   YZ360A/B (74-75)
Yamaha   DT400B/C/D/E (75-78)
Yamaha   IT400C (76)
Yamaha   MX400B/C (75-76)
Yamaha   YZ400B/C (75-76)
Yamaha   SC500/A (73-74)
Yamaha   SR500E/F/G/H (78-81)
Yamaha   TT/XT500C-H (76-81)
   Upper: 25 x 47 x 15   
   Lower: 28 x 52 x 16.5 
Kawasaki   KL250D2-D8 (85-91), KLR250 (-98)
Kawasaki   ZX400K1/K2/K3
Kawasaki   EN450A1-A7 (85-91), EN450N
Kawasaki   EN500A1-A6 (90-96), EN500C1/C2 Vulcan Ltd (96-97)
Kawasaki   GPZ550H1
Kawasaki   KZ550F1/F2/M1 (83-84), KZ550H1/H2 (82-83)
Kawasaki   Z550G6, Z550M1 Ltd (83)
Kawasaki   ZR550B1-B5 (90-94)
Kawasaki   ZX550A1/A2 (84-85)
Kawasaki   GPX600R
Kawasaki   KL600A1/B1/B3 (84-86)
Kawasaki   ZX600 Ninja (85-97)
Kawasaki   KLR650/B2 Tengai (89)
Kawasaki   KL650A1-A11/B2/ KLR (87-97)
Kawasaki   KZ700A1 (84)
Kawasaki   ZN700A1/A2 (84-85)
Kawasaki   GP750R, GPZ750R/R1
Kawasaki   KZ750F1, KZ750L3 (83)
Kawasaki   KZ750N1/N2 (82-83), KZ750R1 (82)
Kawasaki   VN750A2 (86)
Kawasaki   ZR750C1-C4 (91-94), ZR750 Zephyr
Kawasaki   ZX750A1-A3/E1/E2/ F1-F4/H1/H2
Kawasaki   GPZ900R
Kawasaki   ZL900A1/A2 (85-86)
Kawasaki   ZX900A1-A3 (84-86)
Kawasaki   KZ1000J1-J3/K1/K2/ M1/M2 (81-82), KZ1000P1-P17 (82-98), KZ1000R1/R2 (82-83)
Kawasaki   Z1000K1 LTD (82)
Kawasaki   ZG1000A1-A9 (86-94)
Kawasaki   ZL1000A1 (87)
Kawasaki   ZX1000A1/A2 (86-87), ZX1000B1-B3 (88-90)
Kawasaki   GPZ1100A/S, B/S (81-82)
Kawasaki   KZ1100A1-A3 (81-83), KZ1100B1/B2 (81-82), KZ1100D1/D2 (82-83), KZ1100L1 (83)
Kawasaki   Z1100J/J2/Z
Kawasaki   ZN1100B1/B2 (84-85)
Kawasaki   ZR1100A1/A2 (92-93)
Kawasaki   ZX1100A1-A2 (83-84)
Kawasaki   VN15SE
Kawasaki   VN1500A1-A9 (87-95)
Kawasaki   VN1500B1-B5 (87-91)
Kawasaki   VN1500A10/A11/C3/C4/D1/D2 (96-97)
   Upper: 26 x 48.5 x 15.2   
   Lower: 30 x 50 x 14.4   
Honda   C250N (79)
Honda   CB250 (Early Models)
Honda   CB250RS (80-84)
Honda   CBX250RS
Honda   CM250T Rebel (82-84)
Honda   GB250F/F2
Honda   MVX250 (83-84)
Honda   VT250F (83-86), VTR250 (88)
Honda   CB350F/F1 (73-74), CB350G (73), CB350/ K2-K4 (69-72)
Honda   SL350 /K2/K3 (69-73)
Honda   CB360 (74-76), CB360GT (76), CB360T (74-77)
Honda   CJ360T (76-77), CL360 (74-75)
Honda   CB400A (74-75), CB400F (75-77), CB400TI/TII (78-79), CB400T (80-81)
Honda   CBX400F
Honda   CM400A/C/E/T (79-81)
Honda   GB400
Honda   CB450/K1-K7 (65-74), CB450T (82), CB450SC (82-86)
Honda   CL450 /K2-K6 (68-74)
Honda   CM450A/C/E (82-83)
Honda   CB500/K1/K2 (71-73), CB500T (75-76)
Honda   CX500 C/D (78-81)
Honda   FT500 Ascot (82-83)
Honda   GB500F/F2
Honda   GL500/I (81-82)
Honda   VT500 Ascot (83-84), VT500ED, VT500C/FT (83-84)
Honda   CB550K/K1 (74-78), CB550F (75-77), CB550SC (83)
Honda   CBX550F (82-83)
Honda   CB650 (79-82), CB650C (80-81), CB650SC (82-85), CBX650ED/SCD
Honda   CX650C (83), CX650ED
Honda   GL650/I (83)
Honda   VT700C (84-85)
Honda   CB750K (69-78), CB750A (76-78), CB750F (75-78)
Honda   VFR750C (83)
Honda   VT750C (83)
Honda   GL1000 (75-76)
Honda   GL1000L (76)
   Upper: 30 x 48 x 14   
   Lower: 30 x 48 x 14   
Kawasaki   KH250A5 (76)
Kawasaki   KZ250A
Kawasaki   EX350B1 (83)
Kawasaki   KZ350A1/A2/B1 (81-82), KZ350B2/B3 (87-88)
Kawasaki   KH400A3-A5 (76-78)
Kawasaki   KZ400A1/A2 (77-78), KZ400B1/B2/C1 (78-79)
Kawasaki   KZ400D/D3/D4 (74-77), KZ400H1 (79), KZ400S/S2/S3 (75-77)
Kawasaki   ZX400D1-D5 (80-83)
Kawasaki   KZ440A1-A4/D1-D5 (80-83), KZ440B1/B2 (80-81)
Kawasaki   H1 500 C/D/E/F (69-75), KH 500A8 (76)
Kawasaki   KZ500 (69-73)
Kawasaki   H2 750 A/B/C (72-75)
   Upper: 30 x 48 x 14   
   Lower: 30 x 52 x 17     
Kawasaki   EL250B2/B3 (88-89), EL250E1/E2 (91-92), EL250D4/D5 (93-94)
Kawasaki   EX250E/E2/F2-F4 (86-90), EX250 F6/F7/F8/F9,F10/ F11 Ninja250R (92-97), EX250 H1-H5 (90-94)
Kawasaki   ZX400H1/H2, ZXR400R
Kawasaki   EX500A1-A7 (87-93), EX500D1-D4 (94-97)
Kawasaki   KZ550A1-A4/C1-C4 (80-83), KZ550D1 (81)
Kawasaki   KZ650B1-B3/C1-C4/D1/D2/E1/F1/H/ H1-H3
Kawasaki   KZ750B1-B4 (76-79), KZ750E1-E3 (80-82)
Kawasaki   KZ750G1 (80), KZ750H1-H4(80-83), KZ750K1/K2 (83-84), KZ750M1 (82), KZ750T
Kawasaki   KZ900A4/B1 (76)
Kawasaki   Z1 900A/B (73-75)
Kawasaki   Z1R Series (78-80)
Kawasaki   KZ1000A1-A4/B1-B4 (77-80), KZ1000D1 (78), KZ1000D3/G1 (80)
   Upper: 25 x 48 x 15.2     
   Lower: 30 x 48 x 15       
Yamaha   FZR400R
Yamaha   SXR400
Yamaha   SX500B/C/D/E (75-78), TX500/A (73-74)
Yamaha   XS550RK/RJ (82-83), XZ550RK/RJ (82-83)
Yamaha   FZ600 (86-88)
Yamaha   SRX600S/SC (86), SRX600T
Yamaha   TX650/A (73-74)
Yamaha   XJ650G/H//J/K (80-83), XJ650LH (81), XJ650LJ/LK/RJ (82-83)
Yamaha   XS6501/1B/XS2 (70-72), XS650B-H/2F (75-81), XS650SE-SH (78-81), XS650SJ/SK (82-83)
Yamaha   TX750 (73-74)
Yamaha   XJ750J/K/MK/RH/RJ/RK (81-83)
Yamaha   XV750H/J/K/MK (81-83), XV750SE (82)
Yamaha   XV920J/K/MK (82-83), XV920RH/RJ (81-83)
Yamaha   XV1000K/L Virago (83-84)
   Upper: 26 x 47 x 15   
   Lower: 30 x 55 x 17       
Honda   NSR250R/F
Honda   VTR250 (89-91)
Honda   CBR400R (87)
Honda   CBR400 R/R
Honda   NS400RF/RG (85-86)
Honda   VFR400ZG/RG
Honda   CMX450C (86-87)
Honda   CX500TC (82)
Honda   VF500C (84-85), VF500F (84-86), VF500FE/FIIE/FF
Honda   VT500C (85-86)
Honda   CBR600 (89-90)
Honda   CBR600F (87-90), CBR600 FM-FR (91-97), CBR600H
Honda   VT600CJ (87), VT600C N-R (92-94)
Honda   VT600C/CD Shadow VLX (88-97
Honda   CX650T (83)
Honda   NT650 (88-89)
Honda   NT650J Revere
Honda   CB700SC (84-86)
Honda   VF700C (84-87)
Honda   VF700F/S (84-85)
Honda   VFR700F/F2
Honda   CB750C/F/K (80-82)
Honda   CB750F N-S (92-95)
Honda   CB750FA/FB/FC/ F2C
Honda   CB750SC (84-85)
Honda   CBX750FE/F2F (84-86)
Honda   VF750C (82-83)(88)
Honda   VF750CC/CD/CE/SC/SD
Honda   VF750F (83-84)
Honda   VF750 F D/E/F (83-85)
Honda   VF750FD
Honda   VF750S (82-83)
Honda   VFR750 (90-93)
Honda   VFR750F/F2 (82-87), VFR750F L-S (90-95)
Honda   VFR750FG/FH/FJ/FK/ FL
Honda   VT800 (88-89)
Honda   VT800C Shadow(88)
Honda   PC800 Pacific Coast (89-98)
Honda   CB900C (80-82), CB900F A/B/2B/C/2C (80-82), CB900FS(94)
Honda   CBR900RR (93-98)
Honda   CB1000C (83), CB1000F S (95)
Honda   CBR1000 (87-93)
Honda   CBR1000F (87-88)(90-96)
Honda   CBX B/C (81-82)
Honda   VF1000F (84-85), VF1000FE/FF/F2F, VF1000R (85-86)
Honda   GL1100 (80-83), GL1100C/AC/DC/IC, GL1100D2D/AD/A/IA/DA, GL1100RB/RC/D/ID/DD
Honda   VF1100C (83-86), VF1100S (84-85)
Honda   VT1100C (85-89), VT1100C R-S (94-95)
Honda   GL1200 (84-87)
Honda   GL1500 (88-91)
Honda   GL1500 AP-AR (93-94)
Honda   VTX1800C (02)
   Upper: 26 x 47 x 15   
   Lower: 26 x 47 x 15         
Honda   CR80RL-RR (90-94 )
Honda   CR125R (82-89)
Honda   NX125 (88-90)
Honda   XL200R (83-84)
Honda   XR200R (81-87), XR200RE/RF/RG/RH/RJ
Honda   ATC250R (83-86)
Honda   CR250R (82-89), CR250RE/RF/RG/RH/RJ/RK
Honda   XL250R (82-87), XL250R E/F (84-85), XL250R J/K/L (88-90)
Honda   XR250RE/RF/RG/RH/RJ/RK, XR250R N-R (92-94)
Honda   XL/XR350R (83-85)
Honda   XR350RD/RE/RF/RG/RH/RJ/RK
Honda   XR400R (97-98)
Honda   CR450R (81)
Honda   CR480R (82-83)
Honda   CR500R (84-89)
Honda   XL500R (82)
Honda   XR500R (81-84)
Honda   XL600R (83-87), XL600RC/RF (85)
Honda   XL600RD/LD/RE/RF/RG/V-VH(Transalp)
Honda   XR600R (85-89), XR600RH/RJ/RK
Honda   CB750F/K/L (79)
Honda   CBX1000 (79)

[disc_valve]

I don't know about fitting modern disc brakes, but Bridgestone fitted an inboard disc unit to the front wheel of their BS125 twin prototype back in 1965. It looked pretty much like a conventional drum without the brke operating arms, but at that time it was a very novel concept. The factory never pursued the idea, but the bike re-appeared the following year with a conventional t.l.s drum brake and with the engine stretched to 177cc - they called it the Dual Twin!

Honda tried the same idea 30 years ago with their CBX550 and (I think) their VFR400F, but the drawback was a lot of complication when removing the front wheel - not a good idea if you're trying to to fix a problem or puncture at the roadside.

[drtracr]

I am just trying to weight off and better brakes

[OldSwartout]

"Internal" disc brakes never made any logical sense to me as an engineer, I think they were a marketing gimmick that thankfully never made it to production.  You can only put a small disk inside the hub, there is much more braking surface area, heat-absorbing mass and cooling surface area with the conventional drum than with a disk that is small enough to fit inside it.  Just a silly idea, IMO...

drtracer, the standard drums on the 175 are more than adequate to stop the bike; remember, you only have to stop once and  have most of a mile to stop.  They slow my roadracer from top speed multiple times, a minute or two apart, with several hard braking times in between.  They do get pretty hot and eventually cook the lining, but you can do multiple high speed stops as long as there is cool down time in between.   

To get weight off, though, using the front hub/disk brake off a modern dirt bike does make sense , should provide adequate braking and be reasonably easy to adapt. I'm not certain if it's a great advantage.  The thing that hurts most in a LSR is wind resistance, not weight.  Having a disk and caliper stuck out in the air flow is probably less aerodynamic than the hub in the center of the wheel; however, the trade-off may be that the dirt bike forks will be slim round tubes, instead of the Bridgestone's front suspension springs over the fork tubes.

[drtracr]

Karl, once again you lead me down the right path. I sometimes want to reinvent the wheel when the wheel really works rather nicely. Plus you save me lots of money.
Thanks,
Jimmy

[blue twin]

I have done something like this a few times but not on a BS. Measure what you have and compare to these

I put this list together a few years ago and it made the rounds on the forums a few times.

This is  a helpful chart, but only knowing the bridgestone sizes , too. Any of those/ (too lazy to pull out a micrometer)

nd....What are the fork tube dimeters, just in case?

[Toystoretom]

Ummmm, you don't have a mile to shut it down. In fact, on these old airstrips the ECTA uses you have a very short distance and to make it worse when you pass the shutdown sign you have to veer off the airstrip onto a side road. I've tried to find a video that I saw about how frightening the shutdown is but I can't seem to find it, I'll post it when I do. Here is a vid that gives you some idea of what the strip is like, it is not ideal. You won't be going this fast but still, at 100 mph there could be problems.

You also might check the ECTA rules for your class, they may require modern brakes. I would suggest you get a copy and make it your bible, cause you aren't going out there unless you pass tech inspection.

http://www.streetfire.net/video/Conquering-200MPH-on-a_170189.htm

Here is a vid that gives you a good look at the track:

[Toystoretom]

Actually... this must be a rush. I'll bet going 100 mph on a light weight Dual Twin would probably be very scary. I have a huge A$$ Rocket III and I've been up over 120 and that was, shall we say, invigorating. Things really start to move when you get to 100.

Maybe we should hand out red scarves to people that crack 100 mph on a Bridgestone

[Toystoretom]

Here is another vid:



Right at 48 seconds you can see the shutdown sign...

[drtracr]

I have the rule book memorized. You have .9 of a mile to stop. I have actually been there several times. I would prefer discs, but think I will be fine. Besides there is a grove of pine trees to help stop.
JM

[Toystoretom]

I have never been there so you would know better than I  . Walt was running his Rocket III there and said it was hairy stopping, but you have to realize even after some serious weight reduction the Rocket probably weighed in at 600 pounds without a rider, and pushing 200 mph, I can believe it was scary. This really does look fun.

[drtracr]

I don't think I will be running quite that fast, and should have no problem.Thanks,
JM