Yamaha's air-cooled four-stroke trail bikes, from kids' TT-R50E up to the open-class TT models.
1980 – 1982 · 250cc · 4-stroke
One generation until research dates a platform change.
1986 – 1997 · 346cc · 4-stroke
One generation until research dates a platform change.
1983 – 2007 · 595cc · 4-stroke
Kick-start air-cooled enduro based on the XT600 engine.
2008 – present · 110cc · 4-stroke
All-new 110cc engine replaced the TT-R90E.
2003 – present · 124cc · 4-stroke
One generation until research dates a platform change.
1999 – present · 223cc · 4-stroke
Successor to the TT-R225 with a different 223cc engine.
2006 – present · 49cc · 4-stroke
One generation until research dates a platform change.
2000 – 2003 · 124cc · 4-stroke
One generation until research dates a platform change.
1993 – 2006 · 249cc · 4-stroke
One generation until research dates a platform change.
2001 – 2003 · 90cc · 4-stroke
One generation until research dates a platform change.
2003 – 2007 · 90cc · 4-stroke
One generation until research dates a platform change.
Type 3SW. Single source.
Type 59X, front disc. Single source; conflicts with the first pass's 1986 end.
Proposed from German Wikipedia's type table; single source. Front drum brake.
Electric-start successor.