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I used to have a 2007 Yamaha TDM 900 which I thought was a very good motorcycle - apart from its looks. It had a very ugly 'shark' like profile but was a very able machine with comfortable riding position, 18" front wheel, excellent 'blue spot' ABS brakes and a sweet motor (84bhp) that was very smooth and super economical. It had a similar 270 degree crank but with 5 valves I think and capable of hugh mileages. It had adjustable front and rear suspension and gave a very nice compliant ride. I always thought it was a very sound design for a practical dual-sport bike. The AT is now the closest yet to take that concept and develop it to a logical conclusion (more so than the BMW f800). The TDM weighed 226 kgs (with 2 silencers and a 20 litre tank) and would have benefited from being lighter and I'm a bit disappointed that after 13 odd years of 'engineering evolution' that Honda hasn't managed to trim some weight from what is essentially the same engine and running gear configuration . I can only assume that the AT is 10% over-engineered to be on the safe side - when 1% of owners try to ride it like some of those riders we see in their promotional videos!
 

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I wouldn't say over-engineered, just that they chose steel components over light weight and more costly alloys in favour of strength but also to keep the costs down to make the motorcycle more marketable in an already crowded adventure market.

Those TDM's are great bikes but ugly as you say.
 

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Some of the latest regulations - especially noise and emissions - can mean that components and engines themselves have to weigh more. The frame being steel, if you believe the Honda explanation, is to allow for maintenance in far-flung rural areas where only a welding torch might be available. If you don't believe the hype then it's cost-based!

It is mildly disappointing that it isn't lighter though.
 

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Or the TRX, same engine as the earlier S Tenere but with the 270 crank I think. these sounded awesome and went really well. I think the PTwin should be better than the 54 degree V of the earlier AT as it was heavy. Loved my 92 model AT in the UK but needed a few more ponies, this looks like the tool of my dreams. Can't wait 'till they land here in a month (apparently).
 
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