Sorry, that should be "oil" cooled.
Chris.
Forum
For Royal Enfield owners and enthusiasts
- Wed Nov 08, 2017 10:27 am
#71965
- Wed Nov 08, 2017 3:53 pm
#71967
Its growing on me but not setting the world on fire. I had a Guzzi V7 which is similar spec. A little too heavy on fun roads, a bit too easy to end up paying the yellow box tax on not so fun roads, a little underwhelming in its ability not rot in UK weather. Not having hydraulic tappets is a backwards step, but the 6 speed box is good. The price is reasonable compared to the superior Triumph and equal Guzzi. I think really I'm just not in the market for a bike like this. The 400 Benelli's and updated C90's are more my taste (both Asia only FFS).
Andy
Andy
- Wed Nov 08, 2017 3:59 pm
#71968
Just spotted the slipper clutch which makes it a firm no from me. Taking away an optional means of controlling a bike defeats why I ride. Engine braking is massively useful on sheep tracks with steep descents. If I wanted a fixed use system to go where there is infrastructure I'd take the train. You get a choice of drinks.
Andy
Andy
- Wed Nov 08, 2017 4:31 pm
#71970
They look a lot better in that video. I can't help thinking that the engine looks a bit like the old Norton Navigator et all, with a bit of BSA A65 thrown in. Shame it doesn't look more like the old butch Interceptor motor. Slipper clutch on a weedy 650cc twin- why.? What next, power modes? And why a 270 degree crank? For me a parallel twin should sound and feel like one, not a v twin. Overall though it does look right . A bit like the old Kawasaki W650 and about as powerful. Let's hope they make a more potent one next.
- Wed Nov 08, 2017 5:03 pm
#71971
Rattlebattle, A 270° crank gives the best possible secondary engine balance for a parallel twin,
(Complex maths which I can't find a reference for at the moment.
https://wikivisually.com/wiki/Yamaha_TR ... crankshaft
"Although the 270° crank concept has been attributed to Australian Phil Irving (of Vincent renown),[7] the TRX was the first[9] production motorcycle to feature this innovation. The 270° crank has an ignition sequence and an engine balance that yields something of the feel of a V-twin. Unlike 180° & 360° parallel-twins, a 270° engine in motion never has both pistons stationary, so its flywheel momentum is continuous.[3] With less vibration than a 360° crank, and a more regular firing pattern than a 180° crank, a 270° crank results in a smoother engine. Any remaining unevenness of the 270° firing interval has been claimed to deliver power to the rear tyre more effectively.[10]
Since the TRX's demise, the 270° layout has been adopted by large parallel-twins in standard and cruiser motorcycles as the concept appears to be an ideal compromise and optimal configuration.[11] Although in recent years no 270° crank in mid or large capacity parallel-twin has been used in any modern-day sportbike.[citation needed] The 2009 Triumph Thunderbird, the 2010 Norton Commando 961, and the Yamaha MT-07 are all 270° designs. The 2016 Honda 1000cc Africa Twin has a 270° parallel-twin,[12] rather than the V-twin of earlier incarnations; and the recent BMW parallel-twin is a 270° design. Whilst the 900cc Triumph Thruxton had a 360° crank, its 2016 successor, the 1200cc Triumph Thruxton adopted the 270° layout. [13] Stuart Wood, Triumph’s Chief Engineer, stated a 270° crank to be ideal for large-capacity parallel twins, as it generates fewer of those irritating high frequency secondary vibrations. [14]
The 2017 KTM 790 Duke is also a 270° parallel twin. KTM's technical head, Jürgen Hager, said, "We looked at different configurations, including a V-twin, which we prototyped. But the parallel twin is the best solution. It requires fewer parts, like cams and cylinder heads, so is less expensive to produce and easier to package as it is shorter".[15][16]"
(Complex maths which I can't find a reference for at the moment.
https://wikivisually.com/wiki/Yamaha_TR ... crankshaft
"Although the 270° crank concept has been attributed to Australian Phil Irving (of Vincent renown),[7] the TRX was the first[9] production motorcycle to feature this innovation. The 270° crank has an ignition sequence and an engine balance that yields something of the feel of a V-twin. Unlike 180° & 360° parallel-twins, a 270° engine in motion never has both pistons stationary, so its flywheel momentum is continuous.[3] With less vibration than a 360° crank, and a more regular firing pattern than a 180° crank, a 270° crank results in a smoother engine. Any remaining unevenness of the 270° firing interval has been claimed to deliver power to the rear tyre more effectively.[10]
Since the TRX's demise, the 270° layout has been adopted by large parallel-twins in standard and cruiser motorcycles as the concept appears to be an ideal compromise and optimal configuration.[11] Although in recent years no 270° crank in mid or large capacity parallel-twin has been used in any modern-day sportbike.[citation needed] The 2009 Triumph Thunderbird, the 2010 Norton Commando 961, and the Yamaha MT-07 are all 270° designs. The 2016 Honda 1000cc Africa Twin has a 270° parallel-twin,[12] rather than the V-twin of earlier incarnations; and the recent BMW parallel-twin is a 270° design. Whilst the 900cc Triumph Thruxton had a 360° crank, its 2016 successor, the 1200cc Triumph Thruxton adopted the 270° layout. [13] Stuart Wood, Triumph’s Chief Engineer, stated a 270° crank to be ideal for large-capacity parallel twins, as it generates fewer of those irritating high frequency secondary vibrations. [14]
The 2017 KTM 790 Duke is also a 270° parallel twin. KTM's technical head, Jürgen Hager, said, "We looked at different configurations, including a V-twin, which we prototyped. But the parallel twin is the best solution. It requires fewer parts, like cams and cylinder heads, so is less expensive to produce and easier to package as it is shorter".[15][16]"
- Wed Nov 08, 2017 5:33 pm
#71972
As a Californian, it's great news for RE to sell a machine that can cruise on our 80 mph freeways while still having a classic-ish style. Most Bullet owners here sell them after a day on the freeway. This might eventually be my next bike if my health allows. No kickstart...dang!
- Wed Nov 08, 2017 5:36 pm
#71973
including interview of Mark Well ( Head of product design etc )
the front look like normal jap bike to me ..
including interview of Mark Well ( Head of product design etc )
the front look like normal jap bike to me ..
- Wed Nov 08, 2017 5:38 pm
#71974
Felix, I would suggest waiting a while before assuming the new model will sustain 80mph without self destructing.
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