The weight issue is funny. As always people think that the traditional BMW-stuff is heavy. I compared the weight of swingarm, beveldrive/sprocket, driveshaft/chain on a R80GS and a F650GS Paris Dakar:
R80GS shaft 12,4kg
F650GS 9kg
That’s not to bad is it? …… Well if you need to carry a spare set of sprockets and chain the weight for the chain-bike will be 12.3 kg! Still 100 gram lighter but you need lubricants, a few chainlocks and maybe some tools.
Conclusion: Shaftdrive is not necessarily heavier then chain and sprockets!
Sidenote:
Small things like chain guard, chain followers and so on are not included in the weight stated above.
So:
Weight – The same
Cost – Shaft is less expensive in the long run
Maintenance – OldBmw has some good points here, personally I would prefer a few hours job every 100-150.000 km then the hassle with a chain.
Who cares?
Last edited by AliBaba; 16 Jan 2008 at 07:51.
Reason: Added pic
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