Crighton CR700W & guy martin

Anything you like about motorbikes
Nordboy
Posts: 804
Joined: Mon Mar 16, 2020 4:04 pm
Location: S. Wales
Has thanked: 299 times
Been thanked: 558 times

Crighton CR700W & guy martin

Post by Nordboy »



Bloody hell, 700cc, 220bhp and weighs 130kg, bonkers.

Sounds bloody amazing as well.
User avatar
Cousin Jack
Posts: 4414
Joined: Mon Mar 16, 2020 4:36 pm
Location: Down in the Duchy
Has thanked: 2532 times
Been thanked: 2268 times

Re: Crighton CR700W & guy martin

Post by Cousin Jack »

A bit too rich for me, but it does ask the question of why modern bikes are so bloody heavy.
Cornish Tart #1

Remember An Gof!
User avatar
dern
Posts: 2105
Joined: Wed Aug 18, 2021 8:51 am
Has thanked: 1002 times
Been thanked: 1748 times

Re: Crighton CR700W & guy martin

Post by dern »

Cousin Jack wrote: Mon May 22, 2023 1:37 pm A bit too rich for me, but it does ask the question of why modern bikes are so bloody heavy.
Modern bikes have silencing, starter motors, ABS, lights, don't have carbon fibre bodywork and have to have a lot of emissions stuff... this would stand no chance of meeting current standards. God knows what the budget/cost is. I don't think is in anyway comparable to a street legal superbike.
Le_Fromage_Grande
Posts: 11222
Joined: Mon Mar 16, 2020 6:40 pm
Location: The road of many manky motorcycles
Has thanked: 607 times
Been thanked: 4115 times

Re: Crighton CR700W & guy martin

Post by Le_Fromage_Grande »

The last 500 two stroke GP bikes were making over 200bhp and weighed around the same
Honda Owner
Supermofo
Posts: 4966
Joined: Mon Mar 16, 2020 3:39 pm
Has thanked: 4320 times
Been thanked: 2826 times

Re: Crighton CR700W & guy martin

Post by Supermofo »

Being a Wankel I presume it's also a 700cc or much bigger depending on how you measure it? Still impressive though.
The Spin Doctor
Posts: 4093
Joined: Mon Mar 16, 2020 6:17 pm
Has thanked: 2632 times
Been thanked: 1523 times

Re: Crighton CR700W & guy martin

Post by The Spin Doctor »

Supermofo wrote: Mon May 22, 2023 2:58 pm Being a Wankel I presume it's also a 700cc or much bigger depending on how you measure it? Still impressive though.
2.1 litre if you're measuring swept volume.
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer." Henry David Thoreau
www.ko-fi.com/survivalskills www.survivalskillsridertraining.co.uk www.facebook.com/survivalskills
The Spin Doctor
Posts: 4093
Joined: Mon Mar 16, 2020 6:17 pm
Has thanked: 2632 times
Been thanked: 1523 times

Re: Crighton CR700W & guy martin

Post by The Spin Doctor »

dern wrote: Mon May 22, 2023 1:47 pm Modern bikes have silencing, starter motors, ABS, lights, don't have carbon fibre bodywork and have to have a lot of emissions stuff... this would stand no chance of meeting current standards. God knows what the budget/cost is. I don't think is in anyway comparable to a street legal superbike.
Ditto the original GSXRs, and they were featherweight.

OK, the cat weighs a bit and there's the ABS too on modern bikes... but I suspect that the plastic, alloy and steel parts are lower quality and thus heavier. That certainly true of the old GS500s we had as training bikes - the early 2000s F model was significantly heavier than the E model - the wheels were heavier and so was the steel tank. Even stuff like the fork brace went from being alloy to silver painted steel.
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer." Henry David Thoreau
www.ko-fi.com/survivalskills www.survivalskillsridertraining.co.uk www.facebook.com/survivalskills
User avatar
weeksy
Site Admin
Posts: 23301
Joined: Sat Mar 14, 2020 12:08 pm
Has thanked: 5434 times
Been thanked: 13022 times

Re: Crighton CR700W & guy martin

Post by weeksy »

The Spin Doctor wrote: Mon May 22, 2023 3:57 pm
dern wrote: Mon May 22, 2023 1:47 pm Modern bikes have silencing, starter motors, ABS, lights, don't have carbon fibre bodywork and have to have a lot of emissions stuff... this would stand no chance of meeting current standards. God knows what the budget/cost is. I don't think is in anyway comparable to a street legal superbike.
Ditto the original GSXRs, and they were featherweight.

OK, the cat weighs a bit and there's the ABS too on modern bikes... but I suspect that the plastic, alloy and steel parts are lower quality and thus heavier. That certainly true of the old GS500s we had as training bikes - the early 2000s F model was significantly heavier than the E model - the wheels were heavier and so was the steel tank. Even stuff like the fork brace went from being alloy to silver painted steel.
Because people want cheaper and cheaper.
Pgm
Posts: 132
Joined: Fri Jan 08, 2021 8:26 am
Has thanked: 6 times
Been thanked: 83 times

Re: Crighton CR700W & guy martin

Post by Pgm »

I’d have one just need the lottery numbers to come up trumps.
Mr. Dazzle
Posts: 13870
Joined: Mon Mar 16, 2020 7:57 pm
Location: Milton Keynes
Has thanked: 2545 times
Been thanked: 6200 times

Re: Crighton CR700W & guy martin

Post by Mr. Dazzle »

Cousin Jack wrote: Mon May 22, 2023 1:37 pm A bit too rich for me, but it does ask the question of why modern bikes are so bloody heavy.
I had to look it up, but MotoGP has a minimum weight limit of 157kg and is significantly 'chunkier' that this ^ bike. Much fatter and stiffer bits, gigantic brakes etc.

Making a really light bike with loads of power ain't THAT hard. Making one which can pass an MoT and which has a warranty...touch more difficult, as your man says.
The Spin Doctor
Posts: 4093
Joined: Mon Mar 16, 2020 6:17 pm
Has thanked: 2632 times
Been thanked: 1523 times

Re: Crighton CR700W & guy martin

Post by The Spin Doctor »

weeksy wrote: Mon May 22, 2023 4:04 pm Because people want cheaper and cheaper.
MCN ran a story a week or so back to show that bikes were the same price relative to inflation...

...and you couldn't get much cheaper than the GS500!
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer." Henry David Thoreau
www.ko-fi.com/survivalskills www.survivalskillsridertraining.co.uk www.facebook.com/survivalskills
User avatar
Tricky
Posts: 1812
Joined: Sat Mar 14, 2020 9:46 pm
Location: Chilterns
Has thanked: 2528 times
Been thanked: 2640 times

Re: Crighton CR700W & guy martin

Post by Tricky »

:thumbup: Love the idea and the sound, and would love a shot on it but can't believe they didn't put a QS on it- if ever a bike needed one, this it is it
User avatar
KungFooBob
Posts: 14084
Joined: Sat Mar 14, 2020 1:04 pm
Location: The content of this post is not AI generated.
Has thanked: 537 times
Been thanked: 7475 times

Re: Crighton CR700W & guy martin

Post by KungFooBob »

I thought ESP and ABS where a legal requirement on all new cars since the mid 2010's.

Do Caterham get round it because they don't sell enough cars?
v8-powered
Posts: 2523
Joined: Mon Mar 16, 2020 7:37 pm
Location: Layer-de-la-Haye
Has thanked: 2241 times
Been thanked: 1241 times

Re: Crighton CR700W & guy martin

Post by v8-powered »

Lovely piece of engineering, nice to see Guys Volvo make an appearance too!
Mr. Dazzle
Posts: 13870
Joined: Mon Mar 16, 2020 7:57 pm
Location: Milton Keynes
Has thanked: 2545 times
Been thanked: 6200 times

Re: Crighton CR700W & guy martin

Post by Mr. Dazzle »

KungFooBob wrote: Tue May 23, 2023 8:17 am Do Caterham get round it because they don't sell enough cars?
Pretty much! I think there might be an element of grandfather rights involved too, not sure. But yeah it's the low volume which does it.

Other classic one to do is categorise the vehicle as "Exhibition" which brings different rights/requirements. This is really common in the US with ultra-expensive hyper cars. It's also why cars like the McLaren F1 came with a fancy lightweight tool kit, one of the quirks of the exhibition approval is/was that the car has to have an onboard tool kit.