facebook1   youtube1   twitter1   instagram   linkedin1   pinterest1

logosmallNOTICE:  If you are not a free registered member of the site, you will not see the photos in the forum, and you won't be able to access our premium member content. Please consider joining our community!

UK Twinshock Model Information

Exactly when DTs were officially imported into the UK/Europe has not been confirmed, although the 1973 season seems most likely as it is the first year trail bikes appeared in the UK model catalogue.  Although this shows the AT3 and CT3 with UK specific tail lights, small numbers of which were definitely imported, the vast majority sold that year were Europeanised versions of the 1973 North American range and all appear to have come with 21” front wheels.  UK/European bikes have different model codes/designations to those from North America, even if the differences are only minor and they share many common parts.   The only UK/European DTs with a suffix that have been identified are the DT125E (model 1G0) and the DT125 (model 1F9) which is referred to as a DT125F on occasions. 

1973 Season

DT125 (Model 411).  Referred to as ‘DT125 (Type AT-2) for Europe’ on the parts supplement and officially imported into Switzerland, Sweden, Belgium, Finland, Denmark and the UK. Non-UK/European specific parts (most of the bike) are covered in the AT2J/AT3F parts book, using the AT3F quantity column.  Marine Blue/Crystal Silver mudguards.  

DT175 (Model 415).  Referred to as ‘DT175 (Type CT-1) for Europe’ on the parts supplement and officially imported into Switzerland, Finland and the UK.  Non-UK/European specific parts (most of the bike) covered by the AT/CT 2/3 parts book.  Gold Dust/Crystal Silver mudguards. 

DT250 (Model 408).  Not shown on the 1973 UK range brochure; Haynes states DT250 not imported to UK until 1975.

DT360 (Model 407).  Not shown on the 1973 UK range brochure; Haynes states DT360 not imported to UK.

1974 Season

Europe:  New DT125, 175, 250 and 360 introduced, featuring a high level exhaust routed inside the frame rails among other changes, but retaining low level front mudguards.  Single line graphic on tank with Yamaha on the painted area of the tank.  All bikes had crystal silver mudguards, headlamp shell and mounting brackets

DT125 (Model 459).  Still referred to as Type AT-2 despite changes.  Brilliant Red or Candy Yellow according to the parts book. Imported into Holland, Switzerland, Belgium, Finland and UK

DT175 (Model 458).  Still referred to as Type CT-1 despite changes.  French Blue according to the parts book.  Imported into Switzerland, Finland, France and UK.

DT250 (Model 456).  Haynes states DT250 not imported to UK until 1975.  No other information found.

DT360 (Model 457).  Haynes states DT360 not imported into UK.  No other information found.

1975 Season

UK/Europe:  Some changes, including panel style graphic showing engine size and Yamaha on tank.  All bikes had crystal silver mudguards, headlamp shell and mounting brackets.

DT125 (Model 459).  Portuguese Orange or French Blue according to the year specific parts supplement. Imported into Holland, Switzerland, Belgium, Finland, Denmark and UK.

DT175 (Model 458).   Chappy Red according to the year specific parts book.  Imported into France, West Germany, Switzerland, Finland and the UK.

DT250 (Model 512).  Competition Yellow.  Shares parts book with the 400.  Imported into France, Holland, West Germany, Switzerland, Belgium, Sweden, Norway and the UK.  UK specific parts supplement; other parts of UK bike covered by West German quantities in 250/400 parts book.  Low front mudguard.

DT400 (Model 513).  Silver Dust.  Shares parts book with mainland Europe 250.  Only imported into France, Holland, West Germany, Belgium and Austria according to the parts book.  

 1976 Season

UK/Europe:  Significant changes to the range. Single line graphics. Low front mudguards on 100, 125 and 175

DT100 (Model 1N1) introduced - UK only.  Clean White or Chappy Green.

DT125 (Model 1F9) introduced.  Clean White, Chappy Green and Yamaha Black according to the parts book.

DT175 (Model 1G1) introduced. Clean White or French Blue according to the parts book.  Imported into West Germany, Switzerland and the UK.

DT250 (Model 512).  Clean White or New Portuguese Orange.  Imported into France, West Germany, Switzerland, Belgium, Sweden, Norway and UK.  Single parts book covers 250 and 400. Low front mudguard in Sweden and Norway.

DT400 (Model 513).  Low Gloss Black.  Single parts book for 250 and 400. Imported into France, Belgium, Austria, Italy and UK.

Yamaha model code list indicates the DT125E (model 1G0) was introduced but Haynes states this did not happen until February 1978. 

1977 Season

UK/Europe:  Twinshock range reduced to DT100, 125 and 175; DT250 and 400 replaced by monoshocks.  Changes covered by parts supplements.  Panel graphics. 

DT100 (Model 1N1).  Competition Light Green or Space Blue.

DT125 (Model 1F9).  Referred to as DT125F in the model code list and on the parts fiche.  Imported into France, Switzerland, Belgium, Finland and the UK.  Clean White mudguards – front high for France; low for remainder of countries. Modena Red or Crystal Silver; 1977 brochure shows Competition Yellow as well but this is not reflected in the parts supplement.

DT175 (Model 1G1).   Clean White mudguards.  Modena Red or Crystal Silver; a 1977 brochure shows Competition Yellow as well but this is not reflected in the parts supplement.

1978 Season

UK/Europe:  No evidence of significant changes to existing twinshock range found.

DT50M (Model 2M9).  Introduced in the UK only. Panel graphics.  Leaves Green, Clean White or Sunshine Red.

DT100 (Model 1N1).  Separate parts book shows Model 558 on the cover, which was the North American DT100C.  Panel graphics.  Candy Blue or Yamaha Black.  Low front mudguard.

DT125 (Model 1F9).  Discontinued in January 1978.

DT175 (Model 1G1). Discontinued in September 1978.

DT125E (Model 1G0).  Panel Graphics. Candy Blue or Yamaha Black. 

1979 Season - UK

DT50M (Model 2M9).  Separate parts book despite no change in model code.  Panel graphics.  Clean White, Sunshine Red or Yamaha Black.

DT100 (Model 1N1).  Separate parts book and still referred to as Model 558.  Panel graphics.  French Blue or Yamaha Black.

DT125E (Model 1G0). Sold until June 1979 according to Haynes.

1980 Onwards - UK

DT50M (Model 2M9).  Another separate parts book despite no change in model code.  Different graphics but same colours as 1979.  Production ceased in 1981.

DT100 (Model 1N1).  Separate parts book and still referred to as Model 558 in 1980.  Panel graphics.  Clean White.  Discontinued in October 1983 according to Haynes.

   

 

 

Print