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Makotosun

CT1-C Rear Wheel Offset

  • dogman
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CT1-C Rear Wheel Offset was created by dogman

 My rear wheel Seems offset to the chain side. I did some searching and found some measurements in another thread . I measured my rim and came up with the following measurements.

Brake side 48mm
Chain side 54mm

I was just wondering if the spacers are the same on both sides or if it's possible to assemble the wheel in a way that would cause an offset? I did install a new tire and new bearings a while back. One other tidbit, it's bad enough that the tire rubs the fender bolt when the suspension compresses.

I'm obsessive about getting the wheel straight when adjusting the chain. I measure a lot so I don't think it's installed crooked (I will check again tomorrow).

Thanks in advance.

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Last edit: 15 May 2026 19:49 by dogman.
15 May 2026 19:47 #1

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Replied by pabdt on topic CT1-C Rear Wheel Offset

here is a stock CT1 spacing before I tore it apart for clean up: I could measure the spacers if needed.

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1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.


15 May 2026 20:24 #2

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Replied by MarkT on topic CT1-C Rear Wheel Offset

Offset?  Or is top of wheel leaning to left?  (Twisted swingarm?)
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
The following user(s) Liked this Post: Ht1kid
15 May 2026 20:40 #3

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  • dogman
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Replied by dogman on topic CT1-C Rear Wheel Offset

"Offset?  Or is top of wheel leaning to left?  (Twisted swingarm?)"

Ya, it actually does look that way looking at the pictures again. It can be hard with picture angles but that gives me something to focus on.
Last edit: 16 May 2026 08:41 by dogman.
16 May 2026 08:39 #4

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