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Bhud
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PostPosted: 14:24 - 05 Dec 2021    Post subject: Reply with quote

Easy-X wrote:
That's similar numbers to my XSR and while it's a cheeky little engine it's hardly what I'd call unmanageable. Are big singles dramatically different?


Well, I think engine type and configuration does tend to matter a bit when it comes to specific application.

A Huksy 701 ridden like a normal person, in the UK, isn't going to cause any problems and definitely doesn't require any special skills. However, I believe that any 4-cylinder faired bike with those same power figures would just be a lot better adapted to this environment and these riding conditions, because the power delivery is inherently smoother and more manageable. It would have all the acceleration and overtaking ability you would need in normal riding conditions. It's better adapted for the road. It would just be more boring than the Husky.

To use the correct, specialist technical term, it's a blurt-blurt thing. The big singles have that blurt-blurt X-factor - instant power delivered down low, and when you've got a lot of traction it's a lot of fun. It's a kind of over-promise of power, but it delivers at low revs. Some people may want to do wheelies. However, the problem, IMO occurs when you need it. In Europe, riding an XT660 on a really, really steep and slippery mountain road which was polished smooth, it took effort and concentration to take bends which were, literally, like U-turns 2 car parking spaces in breadth, because the rear was itching to slip out with the torque that that bike delivered. In those conditions, a less powerful bike (e.g. a 250) would have been less taxing. Or even a more powerful 4-cylinder bike that wasn't so wild in response to throttle input from down low.

With modern engine management systems, the speed and acceleration is managed to a considerable extent for you. This might be why twins rule the roost today. They can probably program the power delivery to suit the expected environment and riding conditions. However, something tuned to crawl up rock faces and do a wheelie upon command is going to demand more attention and care when doing certain more everyday things.
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stinkwheel
Bovine Proctologist



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PostPosted: 20:47 - 05 Dec 2021    Post subject: Reply with quote

I'd imagine the husky makes most of its power at high revs too. I had an XTZ660 derived MZ and it was no slouch, up to 90mph in any case. It also delivered enough low down power to knock hell out of the drivetrain. It would shred lumps off sticky rear tyres.

When suzuki went full retard in the big singles market with their DR800, they had to warn owners not to shift into second too soon because they were snapping final drive chains. That was with 67bhp. How many sportsbikes snap their chain?
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Robby
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PostPosted: 21:08 - 05 Dec 2021    Post subject: Reply with quote

Even my old CB250RS (and all of the other ones I've owned) will chew through chains. If you only get one power pulse out of 720 degrees of crank movement, it needs to be a big one. That is proportionally hard on everything between the gudgeon pin and the rear wheel.

I assume a lot of the reason for the Husky making that power reliably is metallurgy, particularly being able to make a piston light enough and strong enough to rev higher. Fuel injection probably helps too, working out the right amount of fuel to add to that uncertain column of air shunting back and forth.
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Bhud
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PostPosted: 23:57 - 05 Dec 2021    Post subject: Reply with quote

stinkwheel wrote:
I had an XTZ660 derived MZ and it was no slouch, up to 90mph in any case.


I'm not a music nerd but I think there's a 70s soul record - supposedly pioneering studio multitrack recording techniques - in which the amplitude tapered off in the last track on side B of the album for a whole minute or so. I can't remember the record - bummer. However, that tapering off was revolutionary for the time, because it sounded like some sort of cavalcade disappearing off into the distance. It suggested that the party never ended but was still carrying on, somewhere. If I could find it, that would be the perfect ode to Yamaha 660.
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Easy-X
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PostPosted: 18:56 - 06 Dec 2021    Post subject: Reply with quote

Explicitly mentioned: 45bhp is an artificial restriction...

https://youtu.be/Yg3jBQuwes8
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Bhud
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PostPosted: 00:22 - 07 Dec 2021    Post subject: Reply with quote

Easy-X wrote:
Explicitly mentioned: 45bhp is an artificial restriction...

https://youtu.be/Yg3jBQuwes8


Now that's interesting.
So they've played it conservatively, on the ECU map. I wonder how it would behave when fully unleashed. It's bound to be as lean as heck, out of the factory. A free-breathing exhaust and a remap, and I wonder what it would produce...
If I owned one, I'd want to experiment a bit.
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stinkwheel
Bovine Proctologist



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PostPosted: 00:29 - 07 Dec 2021    Post subject: Reply with quote

Bhud wrote:

Now that's interesting.
So they've played it conservatively, on the ECU map. I wonder how it would behave when fully unleashed. It's bound to be as lean as heck, out of the factory. A free-breathing exhaust and a remap, and I wonder what it would produce...
If I owned one, I'd want to experiment a bit.


They've already designed it with a fake magneto drive cover so may as well put a chain in there and use it to power a blower where the mag would be and replace the starter motor with a dynostarter
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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A100man
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PostPosted: 10:03 - 07 Dec 2021    Post subject: Reply with quote

..a pointless pastiche.
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Tdibs
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PostPosted: 12:32 - 07 Dec 2021    Post subject: Reply with quote

I think it looks like a decent effort to be honest, I was expecting a real abomination.

Talking of the power, 45hp seems very reasonable for this machine and like others have said, probably a few more easy power gains if it bothers you.

Just looking at peak horse power for a big thumper is doing a bit of a disservice to it though really. Its quite a different experience riding big torque waves with lots of violent cattery soundings things going on under you with a ton of engine braking.

The rad cap sticks out like a sore thumb, bit sad to see they did not do as good a job as triumph in hiding the rad some.
https://i.gyazo.com/99b111829b768ac8a429adedc0adb2ad.jpg

And yep, the massive exhaust just looks like a skin, probably hiding a double cat in there, nicely done to be honest.
https://i.gyazo.com/b21dbf805d6380ef5a6b9a9f3c7d3105.png

Overall I think this matches up in its market, pretty competitive against the bullet/inter/street twin/w800.

Interested to see what they do next.
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Easy-X
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PostPosted: 14:25 - 07 Dec 2021    Post subject: Reply with quote

In its price-point what sort of competition has the Interceptor had up till now? It's a top selling model so one wonders why something like the BSA hasn't turned up sooner.
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xX-Alex-Xx
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PostPosted: 14:42 - 07 Dec 2021    Post subject: Reply with quote

Tdibs wrote:


And yep, the massive exhaust just looks like a skin, probably hiding a double cat in there, nicely done to be honest.


If they got it meeting current Euro emissions, it's almost certain to have one.
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Robby
Dirty Old Man



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PostPosted: 16:00 - 07 Dec 2021    Post subject: Reply with quote

Easy-X wrote:
In its price-point what sort of competition has the Interceptor had up till now?


Very little. Sportster was fairly close until they did the new water cooled thing. Guzzi V7 and V9 are a lot more RRP but can be very heavily discounted. It's mostly up against 2-4 year old street twins and the like.

But then that is a lot of it's appeal. For my money I could get a 4 year old street twin, a 2 year old Guzzi V7, or a brand new Enfield interceptor. The others may be technically better bikes, but the Enfield is still a good bike, and new. I wouldn't be surprised if a lot of their customers have never owned a brand new bike before.
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Bhud
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PostPosted: 20:16 - 09 Dec 2021    Post subject: Reply with quote

A dubious but intriguing figure of 90hp when the beast is unleashed has been mentioned by the last BSA works rider:

https://www.youtube.com/watch?v=yzAqeSCLZrI

I wonder if he meant that in the factory in India they got 90hp out of it by sticking a blower on the engine, during testing to destruction, on the bench.

The non-Euro 5 version for the Indian market is rated at 56hp, apparently.
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Bhud
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PostPosted: 21:18 - 09 Dec 2021    Post subject: Reply with quote

Rotax engine.

Suddenly, I've lost a lot of interest. Badge engineering... Does it really deserve a gold star for effort.
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Ayrton
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PostPosted: 22:57 - 09 Dec 2021    Post subject: Reply with quote

stinkwheel wrote:
Ayrton wrote:

I would say those are modern bikes, but that all have more power than the BSA does. I guess I wouldn't call the BSA not modern, but that's hardly the performance you expect from a 650 in todays world.


As above, 40-50bhp is pretty standard for a 650 single. It's pretty much what you're getting from the likes of the new CB500 too.

Yeah it's normal so maybe I'm being a bit harsh, but it's still on the very lower end of the scale. I have a 650 single in my ccm supermoto that does about 50hp and find it enough for that bike, but it probably weighs 50kg less than this does. Personally I just don't see the point in a bike that has no real link to the original BSA company besides the badge and almost fake retro styling with the engine fins and airbox.

At the end of the video Bhud posted he says there is also a 56hp version which would be a lot better I think, but considering the guy believed there was a 90hp version who knows what's true Laughing
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steve the grease
Crazy Courier



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PostPosted: 20:17 - 31 Dec 2021    Post subject: Reply with quote

Lone-Wolf wrote:
Wotcha.

Looks very B33 - ish

The killer will be the price. Will it be able to compete with Royal Enfield ?

EDIT

My B33 for comparison.

https://www.moonshiners.org.uk/LWMEimages/B33-2016-5.jpg


That B33 is lovely, the disc front end looks just right.
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Weisse Schlange
Trackday Trickster



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PostPosted: 16:10 - 03 Jan 2022    Post subject: Reply with quote

stinkwheel wrote:


With a service interval measured in hours?

Comparable Japanese motors, XTZ660 claims 47bhp, DR 43bhp. WR450 is pushing 60.

But I doubt the BSA will be an over-square motor so rev speed will be limited.


With a service interval of 10,000km you mean ?
The 701 pushes 76bhp no bother and is as smooth as hell into the bargain. Service intervals are pretty much on par with most in line 4,s.

I did hear that the BSA is rated at a much higher bhp in India and is only 45bhp over here .
Not sure how true that is.
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