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Rear caliper issue 25 Jan 2020 13:46 #817876

  • Bowserpup32
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What’s up guys. Just wondering if anyone knows about the following. I have a 1978 kz1000a2 with another year and model swing arm. I’m unsure of what year and or model the swing arm is off. I included a photo to help with identifying. My issue is im trying to convert the bulky caliper over to the same small calipers I’m running in the front. Much better look in my opinion. So far I can see the diameter of caliper bracket is way off. I’m assuming I would need a custom bushing made here???? Is there something that already exist for this conversion??? Will I also have issues with aligning the caliper to rotor??? I’m hoping someone has already done this and can weigh in with some insight and tips.

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Rear caliper issue 25 Jan 2020 13:47 #817878

  • Bowserpup32
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Forgot to attach photos

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Last edit: by SWest.

Rear caliper issue 25 Jan 2020 14:29 #817886

  • Scirocco
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Looks like a 81-83 Suzuki GS1100E swingarm.

kzrider.com/forum/13-bike-related/612005...ating-my-z1000j-1983

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Last edit: by Scirocco.

Rear caliper issue 25 Jan 2020 14:48 #817890

  • Mikaw
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No eBay APP ID and/or Cert ID defined in Kunena configurationScirocco is correct... That a GS1100E swingarm… I think this is the bushing you need...
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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Rear caliper issue 25 Jan 2020 18:13 #817905

  • Nessism
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If you click "insert" your photos will show up in high resolution instead of tiny thumbnails. I wish the forum would fix the software.

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Rear caliper issue 26 Jan 2020 04:58 #817922

  • Bowserpup32
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I also had someone tell more the rotor size would be different with the smaller caliper. Is this factual? If so...does anyone know the correct rotor size. Is the change in diameter of rotor or in thickness?

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Rear caliper issue 26 Jan 2020 14:01 #817972

  • Bowserpup32
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It was cheap enough so I just ordered and taking the chance. Thanks bro

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Rear caliper issue 26 Jan 2020 14:03 #817974

  • Bowserpup32
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Where is this “insert” you speak of. I only see attachments option. Can you take a screen shot of where you referring to possibly?

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Rear caliper issue 26 Jan 2020 15:29 #817978

  • Mikaw
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I checked all the rear rotors I have that us that LTD style caliper... and the are all 10 7/8"
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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Rear caliper issue 26 Jan 2020 15:32 #817979

  • Bowserpup32
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I measured mine today. Looks roughly 11 1/4”. I’m thinking no good with your new info. 3/8” is a bitch!!!

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Rear caliper issue 26 Jan 2020 15:34 #817980

  • Mikaw
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I also checked this rear suspension I have that Is similar to yours and it also a 10 7/8” rotor
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.
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Rear caliper issue 26 Jan 2020 15:36 #817981

  • Mikaw
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Look at this photo and see the insert tab under the photo. That’s how you nsert into body of text
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.
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