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The 2-Stroke Garage => Turning Wrenches => Topic started by: stresa on January 16, 2026, 07:44:14 AM

Title: Yamaha RD400 C,D,E USA model fork spring length
Post by: stresa on January 16, 2026, 07:44:14 AM
Hi guys,
how long is the RD400 1A1 fork spring please?
We have a discussion over here as the owner of a USA 1A1 thinks that the fork inners are different to the European 1A3 model.
Regards Uwe
Title: Re: Yamaha RD400 C,D,E USA model fork spring length
Post by: 1976RD400C on January 16, 2026, 09:55:10 AM
15 3/8"
Title: Re: Yamaha RD400 C,D,E USA model fork spring length
Post by: stresa on January 16, 2026, 08:00:35 PM
@1976RD400C
Many thanks! If you have the length of the spacer also would be great.
Regards Uwe
Title: Re: Yamaha RD400 C,D,E USA model fork spring length
Post by: 1976RD400C on January 17, 2026, 08:44:52 AM
oem spacer is 2 3/16"
Title: Re: Yamaha RD400 C,D,E USA model fork spring length
Post by: stresa on January 17, 2026, 05:36:27 PM
Many thanks!!! :olaf:
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