Lets see your front end swaps!

1sttimer said:
Sweet. I've seen one other person use RS125 on smaller bikes (CB175 specifically). They are surprisingly affordable if you can find a complete set. Looks great!


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Looks too steep almost tucked. What is the body?
 
Still very much in progress, but the meat and potatoes of the fork swap is done.

CACFA8E8-F29B-4E89-ABAA-9FA5D90E3B26_zpsbk3qxhsh.jpg


1975 XS650 with 2006 GSX-R 750 fork + triples. Going to be using the GSX-R calipers + master cylinder, but I ordered a Cognito Moto top triple with risers so I can use my tracker bars. My back would hate me if I used clip-ons, especially without rearsets.
 
1976 GL1000 with:

1999 - 2002 VZ800 Marauder forks and triple.
Machined GL hub to run 17mm X 47mm X 14mm bearings.
1995/96 YZF600R 300mm rotors with 14mm spacers
1999 - 2002 SV650 Tokico calipers...

063fdc69e9565f927721ad10256aa78e.jpg


7e3c80620bac186ec461b187033de03a.jpg
 
71 CB 100 with a 90's CB125 s Wheel, caliper and fork lowers with a CB200 fork uppers and triples and I am not having the forks sticking out of the top of the triples like that the pic of the forks show the CB125T fork upper longer then the CB200 fork upper
 

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Have you found someone to cut and machine new threads into your CB200 fork tubes ?
I'd like to do the same thing to a pr. of 33mm forks I have but haven't found a shop who'll do it..
 
I am not sure what you mean by threading but here is what I did
I used the CB200 triples and top of the fork tubes that I bought from a friend of mine.
31mm Honda CB-200T (75-76)
31mm Honda CM-200T “Twinstar” (80 To 2012204)
31mm Honda CM-200T “Twinstar” (80-82)

The 1990 CB125TT Fork lowers and rim
31mm Honda CB-125TT (90)
 

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Thanks for that response & parts description and what I mean is that you mentioned(and I noticed in one of your posted pics)that the fork tubes are sticking up top higher than the top triple clamp on your CB100 bike and I want to ask how will you fix that ? I was considering(I have a 1981 CB125S) taking my fork tubes(that are also too long and stick out up top 4" too high)to some place that will cut them down and then re-thread them so they will fit the length I want;do you know if someone can actually do that ? I already have forks that are the correct length from a CB400F but they don't have those nice features(good disc brake sliders,lower teflon bushings,etc.) that the other forks have which are set-up for a longer & higher cycle but I'm still looking for a machine shop to cut them and re-thread them and i'll use the springs from the CB400F forks which are the same diameter and the correct length;both pairs of forks are 33mm diameter.
 
The CB200 forks are shorter by a few inches then the CB125t tubes so I just swapped them and they fit quite well. I would look at a fork chart and figure out what will fit Diameter wise and then start looking at the fork lengths. you should find something that will fit. Getting the tube retreaded might be a pain in the ass. Here is a list of bikes with 33 mm forks and Tube diameters as well as some other info.

33 Honda CR-80R (84)
33 Honda CR-80R (85-86)
33 Honda TLR-200 (86-87) "Reflex"
33 Honda XL-200R (83-84)
33 Honda CMX-250C (85-87, 96-04)
33 Honda CMX-250C2 (99-00)
33 Honda TL-250K "Trials 250" (75-76)
33 Honda CB-350F/F1/G (72-74)
33 Honda CL-350 "Scrambler 350" (72-73)
33 Honda CB-360/T (75-76), CL-360K (74), CJ-360T (76-77)
33 Honda CJ-360T (76-77)
33 Honda CB-400A "Hondamatic" (7
33 Honda CB-400A "Hondamatic" (7
33 Honda CB-400T I & T II "Hawk" (78-79)
33 Honda CB-400T (80 From 2004662 - 81)
33 Honda CB-400T (80 To 2004661)
33 Honda CM-400A "Hondamatic" (79-81)
33 Honda CM-400T (79-81)
33 Honda CM-400E (80-81)
33 Honda CM-400T (79-80 To 2114344)
33 Honda CB-450SC (82-86)
33 Honda CM-450A/E (82-83)
33 Honda CX-500 (78-79), CX-500C (79), CX-500D (79)
33 Honda CX-500C "Custom" (80)
33 Honda CX-500C "Custom" (80)
33 Kawasaki KX-65A1-A5 (00-04)
33 Kawasaki KX-80E1 (83)
33 Kawasaki KX-80E2/E3 (84-85)
33 Kawasaki KZ-305A1/A2 "CSR" (81-82)
33 Kawasaki KZ-400A1/A2 "Deluxe" (77-7
33 Kawasaki KZ-400C1 (7
33 Kawasaki KZ-400H1 "Ltd" (79)
33 Kawasaki KZ-440A1 "Ltd" (80)
33 Kawasaki KZ-440A2-A4 "Ltd" (81-83)
33 Kawasaki KZ-440D1 "Ltd" (80)
33 Kawasaki KZ-440D2-D4 "Ltd" (81-83)
33 Suzuki RM-65K3/K4 (03-04)
33 Suzuki RM-80 G/H/J (86-8
33 Suzuki GN-250 Z/D (82-83)
33 Suzuki GS-250 TT/TX (80-81)
33 Suzuki GT-250 K/L/M/A/B "Hustler" (73-77)
33 Suzuki GS-300 LZ/LD (82-83)
33 Suzuki GT-380 J/K "Sebring" (72-73)
33 Suzuki GT-380 L/M/A/B "Sebring" (74-77)
33 Suzuki GS-400 B/XB (77)
33 Suzuki GS-400 C/XC (7
33 Suzuki GS-425 N/EN (79)
33 Suzuki GS-450 ET/ST/EX/SX/EZ/ED (80-83)
33 Suzuki GS-450 GAZ/GAD (82-83)
33 Suzuki GS-450 LT/LX/LZ (80-82)
33 Suzuki GS-450 TX/TZ/TXZ/TXD(81-83)
33 Yamaha YZ-80 K/L/N/S/T/U/W/A/B/D (83-92)
33 Yamaha BW-200 ES/ET/EU (86-8
33 Yamaha TW-200 T/TC/U/UC/W/WC/A/AC/B/BC/D/DC/E/EC "Trailway" (87-93)
33 Yamaha TW-200 F/FC/G/GC/H/HC/J/JC/EK/EKC "Trailway" (94-9
33 Yamaha TW-200 L/LC/M/MC/N/NC/P/PC/R/RC/S/SC (99-04)
33 Yamaha SRX-250 T/TC (87)
33 Yamaha XV-250 U/UC/W/WC/A/AC (88-90)
33 Yamaha XV-250 G/GC/H/HC/J/JC/K/KC/L/LC (95-99)
33 Yamaha BW-350 U (8
33 Yamaha XS-360 C/D/2D (76-77)
33 Yamaha XS-400 D/E/2E/F/2F/G/H (77-81)
33 Yamaha XS-400 SG/SH (80-81)

Honda Kawasaki Fork tube Cross reference


Order No. Part No. Year Model Stock Length OD ID Retail Price Fork Seal
624 H8 75-79 GL1000 24" 1.460 1.145 $100.00 pr. 4015
618 H6 73-80 CB750 K L A C 23" 1.375 1.031 $100.00 pr. 4007
620 H61C 75-77 CB750 F1 Supersport 23" 1.375 1.031 $100.00 pr. 4007
619 H6C 75-79 CB750 F2 Supersport 23" 1.375 1.031 $100.00 pr. 4007
621 H7 69-72 CB750 K1-K2 23" 1.375 1.031 $100.00 pr. 4007/09
618 H6 79-80 CB650 C 23" 1.375 1.031 $100.00 pr. 4007
620 H61C 75-76 CB550 F1 Supersport 23" 1.375 1.031 $100.00 pr. 4007
619 H6C 77-78 CB550 F2 Supersport 23" 1.375 1.031 $100.00 pr. 4007
618 H6 74-78 CB550 K 23" 1.375 1.031 $100.00 pr. 4007
614 H36 78-80 CX500 C-D 23" 1.296 .937 $100.00 pr. 4013
618 H6 75-76 CB500 K T 23" 1.375 1/031 $100.00 pr. 4007
617 H5 71-74 CB500 K1 K2 w/rods 23" 1.375 1.031 $100.00 pr. 4007
617 H5 72-74 CB450 K5-6-7 w/rods 23" 1.375 1.031 $100.00 pr. 4007
617 H5 72-74 CL450 K4-5-6 w/rods 23" 1.375 1.031 $100.00 pr. 4007
621 H7 1971 CB450 K3-K4 w/disc 23" 1.375 1.031 $100.00 pr. 4007
645 H71 69-70 CB450 K2-K3-4 5speed 21" 1.375 1.031 $100.00 pr. 4009
645 H71 68-71 CL450 K2-3-4 21" 1.375 1.031 $100.00 pr. 4009
610 H2 65-68 CB450 K 4 speed 22" 1.296 1.000 $100.00 pr. 4013
615 H36C 78-80 CB400 F-T-Hawk 1-11 23" 1.296 .937 $100.00 pr. 4013
614 H36 75-77 CB400 F 23" 1.296 .937 $100.00 pr. 4013
615 H36C 79-80 CM400 A-T-E 23" 1.296 .937 $100.00 pr. 4013
615 H36C 76-77 CB360 CL-CJ 22" 1.296 .937 $100.00 pr. 4013
614 H36 74-75 CB360 CL360 G T 22" 1.296 .937 $100.00 pr. 4013
613 H3 72 1/2-74 CB350-CL350 K4-F-G 22" 1.296 .937 $100.00 pr. 4013
611 H21 68-72 CB350-CL350 K2-3 22" 1.296 1.000 $100.00 pr. 4013
618 H6 73-74 SL350 K2-3 23" 1.375 1.031 $100.00 pr. 4007
646 H21C 70-72 SL350 K1-2 22" 1.296 1.000 $100.00 pr. 4013
616 H4 Thru 67 CL305 CL77 21" 1.375 1.031 $100.00 pr. 4007
610 H2 Thru 69 CB305 CB77 22" 1.296 1.000 $100.00 pr. 4013
619S H6CS 1978 XL250 25" 1.375 1.031 $100.00 pr. 4007
619 H6C 75-76 MR250 23" 1.375 1.031 $100.00 pr. 4007
610 H2 Thru 67 CB250 CB72 22" 1.296 1.000 $100.00 pr. 4013
616 H4 Thru 69 CL250 CL72 22" 1.375 1.031 $100.00 pr. 4007
609 H12 74-76 CB200 CL200 19" 1.225 .937 $100.00 pr.
609 H12 74-75 CB175 19" 1.225 .937 $100.00 pr.
608 H1 65-73 CB175 - CL175 19" 1.225 .937 $100.00 pr.
608 H1 70-71 SL175 19" 1.225 .937 $100.00 pr.
608 H1 THRU 67 CB160 19" 1.225 .937 $100.00 pr.
661 H12C 1975 Elisnore 125 25" 1.225 .937 $100.00 pr.
Order No. Part No. Year Model Stock Length OD ID Retail Price Fork Seal
650 Y71C 77-80 KZ1000 A,B,C,Z1,LTD 24" 1.415 1.031 $100.00 pr. 4006
642 Y7 73-77 KZ900 Z1,A,B,C - H2 A,B 23" 1.415 1.031 $100.00 pr. 4006
650 Y71C 78-79 KZ750 B3-B4 24" 1.415 1.031 $100.00 pr. 4006
642 Y7 72-77 KZ750 B2,B1-H2 A,B,C 23" 1.415 1.031 $100.00 pr. 4006
650 Y71C 77-79 KZ650 B1,2 C1,2,3,D2 23" 1.415 1.031 $100.00 pr. 4006
626 K6C 67-69 W1650 W2 21" 1.335 1.031 $100.00 pr. 4012
642 Y7 72-76 KH500 A,B, H1 D,E,F 23" 1.415 1.031 $100.00 pr. 4006
637 Y6 69-71 H1500 23" 1.335 1.031 $100.00 pr. 4012
615 H36C 74-78 KZ400 A,D S2,3 4 stroke 23" 1.296 .937 $100.00 pr. 4013
647 Y62C 74-77 KH400 A,S3,S3A, 2 stroke 23" 1.335 1.031 $100.00 pr. 4012
647 Y62C 73-75 S2350 23" 1.335 1.031 $100.00 pr. 4012
648 Y6C 1972 S2350 Mack 11 23" 1.335 1.031 $100.00 pr. 4012
636 Y3 67-71 A7350 21" 1.250 1.000 $100.00 pr. 4014
647 Y62C 1970 350 Big Horn 23" 1.335 1.031 $100.00 pr. 4012
648 Y6C 1975 S1250 23" 1.335 1.031 $100.00 pr. 4012
636 Y3 1966 A1250 21" 1.250 1.000 $100.00 pr. 4014

Yamaha and Suzuki
Order No. Part No. Year Model Stock Length OD ID Retail Price Fork Seal
659S S24 78-80 GS1000 ET,SN,EN,N,EC,C 24" 1.450 1.100 $100.00 pr.
658S S28 1979 GS1000 LN 28" 1.450 1.100 $100.00 pr.
658S S28 79-80 GS850 GLT 28" 1.450 1.100 $100.00 pr.
659S S24 79-80 GS850 GT, GN 24" 1.450 1.100 $100.00 pr.
658S S28 1979 GS750 LN 28" 1.450 1.100 $100.00 pr.
619S H6C 77-79 GS750 EN,N,E,EC,C,B 23" 1.375 1.031 $100.00 pr. 4007
620S H61CS 75-77 GT750 B,A,M 25" 1.375 1.031 $100.00 pr. 4007
618S H6 1974 GT750 L 23" 1.375 1.031 $100.00 pr. 4007
622S H72 72-73 GT750 J,K 25" 1.375 1.031 $100.00 pr. 4007
658S S28 79-80 GS550 LT,LN 28" 1.450 1.100 $100.00 pr.
619S H6C 77-80 GS550 T,ET,E,EN,N,EC,C,B 23" 1.375 1.031 $100.00 pr. 4007
620S H61CS 75-77 GT550 B,A,M 25" 1.375 1.031 $100.00 pr. 4007
651S H72B 1974 GT550 25" 1.375 1.031 $100.00 pr. 4007
623S H7B 1974 GT550 L 25" 1.375 1.031 $100.00 pr. 4007
621S H7 72-73 GT550 J,K 23" 1.375 1.031 $100.00 pr. 4007
618S H6 75-76 RE500 A,B Rotary 23" 1.375 1.031 $100.00 pr. 4007
651S H72B 76-77 GT500 A,B 25" 1.375 1.031 $100.00 pr. 4007
638S Y61 68-77 GT500 R,J,K,M 23" 1.335 1.031 $100.00 pr. 4012
639S Y62 1974 GT500 L 23" 1.335 1.031 $100.00 pr. 4012
614S H36 1980 GS450 LT,ST,S 23" 1.296 .937 $100.00 pr. 4013
614S H36 1979 GS425 LN,EN,N 23" 1.296 .937 $100.00 pr. 4013
614S H36 77-78 GS400 C,XC,B,XB 23" 1.296 .937 $100.00 pr. 4013
639S Y62 74-75 TM400 L,M 23" 1.335 1.031 $100.00 pr. 4012
647S Y62C 72-73 TM400 J,K 23" 1.335 1.031 $100.00 pr. 4012
639S Y62 73-77 TS400 K,L,M,B 23" 1.335 1.031 $100.00 pr. 4012
638S Y61 1972 TS400 J 23" 1.335 1.031 $100.00 pr.
615S H36C 74-77 GT380 L,M,A,B 22" 1.296 .937 $100.00 pr. 4013
612S H2C 72-73 GT380 J,K 22" 1.296 1.000 $100.00 pr. 4013
647S Y62C 1972 GT350 J 23" 1.335 1.031 $100.00 pr. 4012
638S Y61 69-71 GT350 23" 1.335 1.031 $100.00 pr. 4012
612S H2C 72-78 GT250 J,K,L,M,A,B,C 22" 1.296 1.000 $100.00 pr. 4013
638S Y61 68-71 GT250 23" 1.335 1.031 $100.00 pr. 4012
647S Y62C 73-78 TS250 23" 1.335 1.031 $100.00 pr. 4012
638S Y61 71-72 TS250 23" 1.335 1.031 $100.00 pr. 4012
638S Y61 68-71 GT185 R 23" 1.335 1.031 $100.00 pr. 4012
654 Y79 78-79 XS1100 SF 27 1/4" 1.450 1.100 $100.00 pr.
655 Y74 79 XS1100 F,E $100.00 pr.
656 Y73 78-79 XS750 F,E $100.00 pr.
653 Y72 78-79 XS750 SF,SE 27" 1.415 1.100 $100.00 pr.
650 Y71C 1977 XS750 D,2D 23" 1.415 1.031 $100.00 pr. 4006
642 Y7 73-76 TX750 XS750 23" 1.415 1.031 $100.00 pr. 4006
649 H62C 78-79 XS650 E,SE,F,2F,SF 23" 1.375 1.031 $100.00 pr. 4007
641 Y631 75-77 XS650 B,C,D,2D 23" 1.335 .937 $100.00 pr. 4012
640 Y63 72-74 TX650 XS650 23" 1.335 .937 $100.00 pr. 4012
637 Y6 68-71 XS650 23" 1.335 1.031 $100.00 pr. 4012
649 H62C 78-79 SR500 F,E 23" 1.375 1.031 $100.00 pr. 4007
649 H62C 1979 XS500 Special 23" 1.375 1.031 $100.00 pr. 4007
641 Y631 75-78 XS500 E,D,C,B TX500 23" 1.335 .937 $100.00 pr. 4012
640 Y63 73-74 TX500 A 23" 1.335 .937 $100.00 pr. 4012
615 H36C 77-79 XS400 F,2F,E,2E,D 24" 1.296 .937 $100.00 pr. 9013
647 Y62C 76-77 RD400 D,C 23" 1.335 1.031 $100.00 pr. 4012
662 H62SP 1979 RD400 F 23" 1.375 1.031 $100.00 pr.
615 H36C 76-77 XS360 D,2D,C 23" 1.296 .937 $100.00 pr. 4013
639 Y62 69-75 RD350 R5350 23" 1.335 1.031 $100.00 pr. 4012
635 Y1 67-68 YR350 YR1,2,3 21" 1.335 1.031 $100.00 pr. 4012
636 Y3 66-69 YM305 YM1,2 23" 1.250 1.000 $100.00 pr. 4014
639 Y62 73-75 RD250 A,B 21" 1.335 1.031 $100.00 pr. 4012
636 Y3 Thru 68 YD250 YDS3 23" 1.250 1.000 $100.00 pr. 4014
639 Y62 69-70 DS250 DS6,7 RC250 23" 1.335 1.031 $100.00 pr. 4012

http://www.allballsracing.com/index.php/forkconversion
 
some stanchion tubes simply have a counterbore and a snap ring groove at the bottom end so that would be the logical place to shorten it
nobody will have a tap to the thread the fork tube besides it really must be done with a single point tool ,manually,in the lathe, a lost art i am probably one of the few left that can do it with eyes closed and hand tied behind my back
 
xb33bsa said:
some stanchion tubes simply have a counterbore and a snap ring groove at the bottom end so that would be the logical place to shorten it
nobody will have a tap to the thread the fork tube besides it really must be done with a single point tool ,manually,in the lathe, a lost art i am probably one of the few left that can do it with eyes closed and hand tied behind my back

I'll be back in touch with you bout this Kenny ;) I already have the CB400F forks(tubes are real gouged and I had to rub the heck out of them w/ fine 800 sandpaper just to use them,lowers are good) and they're the correct length for me but something about that lower teflon factory bushing on the tubes of the 86' Rebel 250 forks(the lowers are cool looking too,disc brakes,etc.)makes me like them.
 
grcamna5 said:
I'll be back in touch with you bout this Kenny ;) I already have the CB400F forks(tubes are real gouged and I had to rub the heck out of them w/ fine 800 sandpaper just to use them,lowers are good) and they're the correct length for me but something about that lower teflon factory bushing on the tubes of the 86' Rebel 250 forks(the lowers are cool looking too,disc brakes,etc.)makes me like them.

the DU bushings are a good thing that is for sure the best thing to happen to forks
as long as your sliders are in good shape i can convert them over to use a DU bushing
its a relatively simple machine opreation the stanchion i machine a home for its bushing and the slider gets a counterbore below the seal
back when i was racing enduros the little 86 kdx 200 had isuues with the front forks, too much compression damping which paul thede at race tech helped out with but the other was the du bushings had too much clearance leading to a skittish feel in the front especially picking your way through fields of baby heads
my solution was a simple one, tighten up the bushing clearance with shim stock underneath the lower bushing on the stanchion
the upper bushing could be shimmed or knurled as long as the ends were filed a bit to allow it to close up tighter
bottom line is it made a huge difference the clearance stock was huge,like .006 :eek:" !!
 
I'd like to see if you'd cut the tops off the 86' CMX250C Rebel 250 fork tubes and re-thread them.. Big job huh?! ::)
 
grcamna5 said:
I'd like to see if you'd cut the tops off the 86' CMX250C Rebel 250 fork tubes and re-thread them.. Big job huh?! ::)
no its not a big job really but i dont have a metric gearbox on my lathe so it would involve making caps or adopting something ready made from the steam age inches
that said the cap doesnt need to be threaded a simple plug with oring groove and a retaining ring groove in the fork for a retaining ring is all that is needed
 
xb33bsa said:
no its not a big job really but i dont have a metric gearbox on my lathe so it would involve making caps or adopting something ready made from the steam age inches
that said the cap doesnt need to be threaded a simple plug with oring groove and a retaining ring groove in the fork for a retaining ring is all that is needed

Like the Yamaha's? well that's good to know,I didn't even think about that;as long as i wouldn't use too much preload I wouldn't have to worry about losing the 'pop cap'. :D

edit:I mean when trying to disassemble them;ever try removing those from an old Yam. after sitting outside w/ no rubber caps getting rusty for lots of yrs.? WD40 and then see how much 'pogo' it'll take.. :eek: :D Now where did that cap go ?? ::)
I wouldn't let mine get rusty that way. ;)
 
grcamna5 said:
Like the Yamaha's? well that's good to know,I didn't even think about that;as long as i wouldn't use too much preload I wouldn't have to worry about losing the 'pop cap'. :D

with the shear strength on those clips, you would have far greater problems if you popped one out after assembly =)
 
1978 Yamaha SR500 with 2000 Yamaha R6 front end. It required to have the triple clamps fabricated, along with a new steering stem which is a copy of the stock stem; this is so it would bolt up without issue..new bearing etc... This allows me to have adjustable suspension, better brakes, and the use of 17" wheels and tires. Stock forks are 32mm and the R6 is 43mm.



 
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