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RD 250 - South Coast Classic Racing
https://www.scc-racing.com/rd-250.html
RD 250 - South Coast Classic Racing Yamaha RD 250C (1976) Machine overview: This is the most recent addition to the team. It is owned by Keith Howard and it is his first ever race bike. Being what you might call a bit of a 'Yamaha' man, he is a total RD nut and currently has enough RD250 bits on the shelf to make another 2 race bikes with!
RD250 - ERLENBACH RACING
http://erlenbachracing.co/RD250.htm
The RD250LC made a claimed 34-36HP The RD250LC porting was essentially the same as the aircooled 2R8 cylinders with the exception of the a slightly wider and much more oval shaped ex port, slightly higher transfers by .5mm and the ex port outlet diam dropping from 37 to 35mm. raised 2mm from 57
Yamaha RD250 Earlystock’s race bike - Classic Motorbikes
https://classic-motorbikes.net/yamaha-rd250-earlystocks-race-bike/
RD250 Race Bike Instruments A pair of specially made, slightly longer, upside down Hagon shocks dutifully hold up the rear end and combined with the box section Dresda swing arm it is hoped the RD will be obedient on the track.
RD250 LandSpeed Project - ERLENBACH RACING
http://erlenbachracing.co/RD250_LandSpeed_project.htm
for the RD250 yet. Todias Wossner stepped up and between him, myself and a lot of help from some really world class two Stroke men now there is. Building the pipes Ready to Race The Worlds Fastest RD250 143.767mph A special thanks to Tom Turner, Neels van Niekerk, Tobias Wossner, John Ritter, Wobbly Wright,
History and differences between Yamaha RD250 - ERLENBACH …
http://erlenbachracing.co/RD_TZ_LC_RZ_history_and_differences.htm
History and differences between Yamaha RD250. (From the 1970 DS7/R5 to the 1990 reverse cylinder TZ250) (Note: for ease of reference I refer to 73-80 TZ‘s as “early TZ‘s“) -1957 the YD1 Yamahas first Two Stroke Twin. -1962 The RD56 Yamahas first World Grand Prix Champion winner (56x50 rotary valve 250) and the introduction of Yamahas ...
Yamaha RD250 Gallery - Classic Motorbikes
https://classic-motorbikes.net/classic-bike-images/yamaha-classic-motorcycles/yamaha-rd200-rd250/
tzr 125 forks rd350 hub in a tdr 250 wheel (110/80/17) single disc. rear end tzr 250 s/arm. twin shock conversion tzr 250 brake and disc tdr 250 rear wheel with alloy sprocket. home made rear sets. engine: yds7 bottom end 250e clutch and barrels. r5carbs. with kn filters exhaust system possibly early microns (not sure). stainless steel fastners used throughout the bike build. …
The RD 250. This is what the fuss was about | Biker & Bike
https://www.bikerandbike.co.uk/yamaha-rd250-classic-bike/
The ‘Race Developed’ tag meant that Yamaha continued to work on the RD and in 1980 they rolled out the next model, the RD250 and 350 LC. They were improved in every way, lighter, more powerful with superior handling thanks to more modern suspension and brakes. And they were just gorgeous to look at. But something was missing.
Awesome Yamaha RD250 Project For Sale - Barn Find …
https://www.barnfindmotorcycle.com/awesome-yamaha-rd250-project-for-sale/
This 1978 Yamaha RD 250 has been partially restored and now ready for a new owner to complete and enjoy. The two stroke Yamaha RD range have a cult following amongst motorcyclists due to the wild antics of the 1970s and 1980s, which often involve tuning and wheelies. Click here for current auction listing Ready for renovation and new owner
ERLENBACH RACING
http://erlenbachracing.co/
World Record holding Yamaha RD250 143.767mph All engine development is done exclusively with TSR Two-Stroke Racing engine design software and Vannik Developments Two Stroke Engine Simulation Software 3 Time World Record Holding RD400
RD-250 - Wikipedia
https://en.wikipedia.org/wiki/RD-250
The RD-250 ( GRAU Index 8D518) is the base version of a dual-nozzle family of liquid rocket engines, burning N 2 O 4 and UDMH in the oxidizer rich staged combustion cycle. The RD-250 was developed by OKB-456 for Yangel 's PA Yuzhmash ICBM, the R-36 (8K67). Its variations were also used on the Tsyklon-2 and Tsyklon-3 launch vehicles.
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