Author Topic: 750 cc (Read 5759 times)

Gypsyjon · **on:** February 25, 2014, 01:12:01 am

http://www.motorbeam.com/bikes/royal-enfield-bikes/royal-enfield-developing-250-750cc-models-for-the-us-uk-markets/

heloego · **Reply #1 on:** February 25, 2014, 03:37:37 am

Ooh, Daddy!
This bears watching, fer sure!

mattsz · **Reply #2 on:** February 25, 2014, 03:44:17 am

But wait... this article is talking about "the 250cc – 750cc segments" - which is what we have now. I don't think this is foreshadowing anything new...

High On Octane · **Reply #3 on:** February 25, 2014, 03:52:56 am

Yep. Still no talks of a twin which is what Enfield HAS to do to continue competing in this market.

Scottie J

Ducati Scotty · **Reply #4 on:** February 25, 2014, 04:39:41 am

+1. They now have two sizes of bike in the global 250-750 range: 500 and 535. No mention of any other sizes forthcoming.

Scott

Gypsyjon · **Reply #5 on:** February 25, 2014, 12:07:27 pm

Actually, in my mind , a 750 single would be pretty interesting...no doubt it will be a twin.

High On Octane · **Reply #6 on:** February 25, 2014, 01:03:33 pm

Quote from: Gypsyjon on February 25, 2014, 12:07:27 pm

Actually, in my mind , a 750 single would be pretty interesting...no doubt it will be a twin.

A 750cc single would mean a piston size of roughly 143mm. That is a HUGE piston for one single piston rod to be pushing up and down IMHO. The biggest singles I know of in production only go to 650cc and then they start going to a twin configuration. I'm know there are bigger singles out there, but not in production format I believe.

Scottie J

heloego · **Reply #7 on:** February 25, 2014, 02:15:12 pm

Either parallel or twin makes no difference to me. But a 650 definitely would be sweet.

barenekd · **Reply #8 on:** February 25, 2014, 06:43:25 pm

The old rumors from the factory were a 750 vertical twin, but I've heard 650, too. It will be a vertical twin an either case. All the old postwar bikes were vertical twins (or singles). Why do you think they would change that? They might go for a balance shaft as vertical twins are notorious shakers! Yes, Mable, they can be a lot worse than a thumper!
Bare

Ducati Scotty · **Reply #9 on:** February 25, 2014, 06:58:03 pm

Yeah, about 800cc is the limit for a vertical twin before it starts to shake way too much. I think you can go past that with modern counterbalancers but you won't see any older bikes bigger than that.

Scott

dan0h · **Reply #10 on:** February 25, 2014, 07:40:23 pm

I was told there is a V-Twin coming to the UK... not just from a single source either - hopefully true!

TomJohnston · **Reply #11 on:** February 25, 2014, 07:56:06 pm

The "V" is a 180 V and it's called a BMW...no vibration either.......chuckle-chuckle.

GreenMachine · **Reply #12 on:** February 25, 2014, 11:29:08 pm

Maybe we'll be surprise as they were able to keep it under wraps the past few years...Meh, I think we've been hood-winked again...

hillntx · **Reply #13 on:** March 01, 2014, 01:45:19 am

When I was at the International Motorcycle Show my dealer told me Royal Enfield was making a 750 twin due out in the next couple years. If you look at the frame for the Cafe Racer there is plenty of room for a parallel twin 750. To me it seems over built for a 535.

boggy · **Reply #14 on:** March 03, 2014, 11:14:34 pm

Quote from: High On Octane on February 25, 2014, 01:03:33 pm

The biggest singles I know of in production only go to 650cc and then they start going to a twin configuration.

690cc in KTM's Duke and Supermoto. Two supposedly amazing machines, but probably not the kind of riding profile you'd see in an Enfield.

gashousegorilla · **Reply #15 on:** March 04, 2014, 12:40:41 am

An interesting single that Ducati came up with. With a "Dummy connecting rod" as a counter balance.

http://www.users.globalnet.co.uk/~fhs/images/ducatimuseum4.jpg

http://en.wikipedia.org/wiki/Ducati_Supermono

Ducati Scotty · **Reply #16 on:** March 04, 2014, 12:53:12 am

A better thing to do with a spare Ducati con rod:
http://thekneeslider.com/ducati-v-one-twin-to-supercharged-single-conversion/

Scott

gashousegorilla · **Reply #17 on:** March 04, 2014, 01:12:45 am

WOW !.... And a spare piston evidently. That IS cool.

High On Octane · **Reply #18 on:** March 04, 2014, 02:03:58 am

Quote from: Ducati Scotty on March 04, 2014, 12:53:12 am

A better thing to do with a spare Ducati con rod:
http://thekneeslider.com/ducati-v-one-twin-to-supercharged-single-conversion/

Scott

That is wicked cool!

Ducati Scotty · **Reply #19 on:** March 04, 2014, 03:02:30 am

You getting ideas Scottie?

High On Octane · **Reply #20 on:** March 04, 2014, 01:11:57 pm

Quote from: Ducati Scotty on March 04, 2014, 03:02:30 am

You getting ideas Scottie?

I AM!!! Freaking Ingenious!!! 15 more HP and TWICE the economy!!! It definitely has the wheels turning in my head.

Scottie J

RoyalDetroit · **Reply #21 on:** March 12, 2014, 05:21:17 pm

Maybe the second coming for the Intercepter 750!! That was a 750cc vertical twin, my 1964 was a smooth engine.