Knurled
Knurled MegaDork
5/7/17 9:29 a.m.

I only got a glimpse of the sportbike from the side, and the fairs and everything were flat black. Decals were light gray, so basically invisible.

But, distinctively, it had four tailpipes under the seat that looked like they bent outwards, then angled in again to converge on an imaginary point a couple feet behind the license plate. ("Angled" is key - the tips were not round and the pipes didn't look curved so much as bent, the styling implied that curves and other "soft" shapes were avoided intentionally)

And the SOUND! It didn't sound at all like any motorcycle engine I've ever heard. It was irregular and deep like a crossplane V8. The dissonance between the visual and the audio left me completely baffled. It didn't sound at all like a V-twin or an inline four or even a triple.

Any ideas? I got to know what sorcery was making something that looked like that, sound like that!

singleslammer
singleslammer PowerDork
5/7/17 9:47 a.m.

MV agusta f4

wheelsmithy
wheelsmithy Dork
5/7/17 9:48 a.m.

MV Augusta?

singleslammer
singleslammer PowerDork
5/7/17 9:50 a.m.

It has a v4

wheelsmithy
wheelsmithy Dork
5/7/17 9:53 a.m.

wheelsmithy
wheelsmithy Dork
5/7/17 9:54 a.m.

I missed it by this much....

Knurled
Knurled MegaDork
5/7/17 10:04 a.m.
singleslammer wrote: It has a v4

Could be it. The exhaust doesn't look quite right.

I found some videos on YouTube about crossplane R1s that sound kinda like what I heard.

And they make me want to find an LS1 that blew a cylinder wall out, and make an inline four out of it.

Huckleberry
Huckleberry MegaDork
5/7/17 10:19 a.m.

A lot of sport bikes from around the turn of the century had under-tail exhausts so they could have longer pipes without tight turns. Anything liter-bike with a punchy 4 cylinder is in play.

Hyabusa with aftermarket

Z1k

CBRS, MVs, literally anything of that era could be it. There were aftermarket kits for everything that didn't already have one stock so the angled square stuff could have been a bolt on. It looks cool but it's stupid and it makes all your E36 M3 you put on the rack or wear on your back smell like exhaust fumes.

Knurled
Knurled MegaDork
5/7/17 10:36 a.m.
Huckleberry wrote: It looks cool but it's stupid and it makes all your E36 M3 you put on the rack or wear on your back smell like exhaust fumes.

Guy I work with has a first year ZX10R. He saw it at the motorcycle show, sat on it, and immediately placed an order. He felt really, really good about his purchase when the second year bike had an underseat exhaust.

It does seem pretty silly to me, too.

wheelsmithy
wheelsmithy Dork
5/7/17 2:03 p.m.

Actually, F4 was inline, not V.

singleslammer
singleslammer PowerDork
5/7/17 9:38 p.m.

I stand corrected, I was thinking of the Aprilia unit!

carknut
carknut New Reader
5/9/17 3:04 p.m.

Crossplane r1 with toce exhaust?

Knurled
Knurled MegaDork
5/9/17 4:35 p.m.
carknut wrote: Crossplane r1 with toce exhaust?

Could be. The tips look wrong but the taillight looks right.

Bobzilla
Bobzilla UltimaDork
5/9/17 4:41 p.m.
singleslammer wrote: I stand corrected, I was thinking of the Aprilia unit!

Mmmmm.... Aprilia RSV4 RR sounds amazing too. Aprilia, when you don't have enough douchebagness to ride a Ducati but still want italian.

ae86andkp61
ae86andkp61 HalfDork
5/10/17 6:37 p.m.
carknut wrote: Crossplane r1 with toce exhaust?

Came here to post this. The crossplane R1 has a very distinctive sound unlike any other inline four.

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