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RD-RZ history

Started by teazer, July 05, 2019, 08:15:24 PM

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Domn8tr

#45
November 08, 2023, 08:35:15 PM
I picked up a nice 69 r3. Will R5 or RD cylinders fit? I'm assuming pistons too👍

captainslow

#46
March 17, 2025, 02:01:30 AM Last Edit: March 17, 2025, 10:22:33 AM by captainslow
Quote from: EE on July 27, 2019, 04:31:22 PMTransmission Ratios
TZ250     RD400   RD250/350
.81            .888         .785
.87            .961         .888
.96            1.083       1.040
1.13          1.318       1.318
1.42          1.778       1.778
1.93          2.571       2.571

This is great info on the history. Forgive me if this was posted somewhere and I missed it; AFAIK the UK RD350B 1975 later models (521) came with the 400 Trans ratios.

source: https://www.aircooledrdclub.com/manuals/350AB.pdf
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