Author Topic: parts list for dual disc conversion  (Read 1107 times)

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Offline DiCi

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parts list for dual disc conversion
« on: September 22, 2013, 02:43:38 PM »
Hi folks,
 i'm looking for a parts list if there is one to convert my 1975 750k to dual discs, TIA
Dum Spiro Spero

Offline Don R

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Re: parts list for dual disc conversion
« Reply #1 on: September 22, 2013, 02:51:04 PM »
Everything that is on your bike now plus an extra long banjo bolt and washers. The bracket and caliper are reversable, there was a custom speedometer drive available or you can make yours work. The fender brace needs a little massaging. There are numerous threads about it.  Try the search on the left .
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Offline Ewan 500K1

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Re: parts list for dual disc conversion
« Reply #2 on: September 22, 2013, 03:09:55 PM »
+ 6 GL1100 disc bolts
jings, crivens, help ma boab

500 four K1 cafe racer build thread at :
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Offline DiCi

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Re: parts list for dual disc conversion
« Reply #3 on: September 22, 2013, 03:38:46 PM »
thank you Don !

 i read a lot of threads but they all seem different depending on model year, i guess i was looking for part #'s  to be certain i was getting the right parts, i'm not a mechanic, so i'm trying to avoid having to buy parts twice !
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Offline flybox1

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Re: parts list for dual disc conversion
« Reply #4 on: September 22, 2013, 03:42:32 PM »
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

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Offline DiCi

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Re: parts list for dual disc conversion
« Reply #5 on: September 22, 2013, 03:57:19 PM »
thanks for the info Fly !

those part #'s are for a K1, are they still a valid choice for my K5 ?
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Online scottly

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Re: parts list for dual disc conversion
« Reply #6 on: September 22, 2013, 07:30:29 PM »
The K1 caliper mounts will not bolt up to K5 fork legs: you will need a K3-K6 caliper assembly. All of the K model rotors will work.
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Offline RAFster122s

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Re: parts list for dual disc conversion
« Reply #7 on: September 22, 2013, 07:34:12 PM »
550 parts while looking similar to early 750 parts don't work, so be sure to get the 750 versions.
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Online scottly

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Re: parts list for dual disc conversion
« Reply #8 on: September 22, 2013, 07:42:45 PM »
Hey David, it's the late 750 calipers that look like the 550 calipers. ;) Hey, it all worked out in the end for all 3 of us. ;D ;D
Don't fix it if it ain't broke!
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Offline DiCi

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Re: parts list for dual disc conversion
« Reply #9 on: September 22, 2013, 08:00:43 PM »
thanks for the heads up Scottly ! much appreciated !
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Offline RAFster122s

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Re: parts list for dual disc conversion
« Reply #10 on: September 22, 2013, 08:40:27 PM »
Thanks for the heads up correction, had it backwards.  Calipers are same, right? It is the mount brackets that are different, which accounts for rotor diameter differences. Rotor hubs are identical.
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Online scottly

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Re: parts list for dual disc conversion
« Reply #11 on: September 22, 2013, 09:11:02 PM »
Thanks for the heads up correction, had it backwards.  Calipers are same, right? It is the mount brackets that are different, which accounts for rotor diameter differences. Rotor hubs are identical.
Calipers are different; 550 are 38mm, and K7-K8 are 42.8mm. The 550 caliper is basically a smaller version of the late 750 unit.
DiCi, since you are in Canada, you might get in touch with Frank, aka 754, and see if he can help you out with parts.
Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline Don R

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Re: parts list for dual disc conversion
« Reply #12 on: September 22, 2013, 11:21:51 PM »
I forgot the rotor bolts. I used 5/16" don't remember the length, with nylock nuts. I bought a bag full and may still have some.
No matter how many times you paint over a shadow, it's still there.
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 You don't need a weatherman to know which way the wind blows.

Offline 70CB750

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Re: parts list for dual disc conversion
« Reply #13 on: September 23, 2013, 04:44:26 AM »
Prokop
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