44 Teeth BBB

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weeksy
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Re: 44 Teeth BBB

Post by weeksy »

Le_Fromage_Grande wrote: Fri Sep 16, 2022 8:49 pm
KungFooBob wrote: Fri Sep 16, 2022 6:30 pm The Chunderace is only 5 speed, but apparently such a wide spread of torque you don't need the extra ratio.
All the pre R1 Yamaha 1000s are 5 speed, 750 6 speed gearbox drops straight in, but they don't need 6 gears for road use, best would be the close ratio box out of an OW01 (which will do 100mph in 1st gear)
KungFooBob wrote: Fri Sep 16, 2022 6:30 pm The Chunderace is only 5 speed, but apparently such a wide spread of torque you don't need the extra ratio.
Well I didn't know that!
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Re: 44 Teeth BBB

Post by Yorick »

Le_Fromage_Grande wrote: Fri Sep 16, 2022 8:49 pm
KungFooBob wrote: Fri Sep 16, 2022 6:30 pm The Chunderace is only 5 speed, but apparently such a wide spread of torque you don't need the extra ratio.
All the pre R1 Yamaha 1000s are 5 speed, 750 6 speed gearbox drops straight in, but they don't need 6 gears for road use, best would be the close ratio box out of an OW01 (which will do 100mph in 1st gear)
They uses to race OW01s with litre engines.
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Re: 44 Teeth BBB

Post by Couchy »

I like the idea of what they are doing, Fagan is ok to watch but the other dude it’s like a shit version of beavis and butthead with playground humour.
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Re: 44 Teeth BBB

Post by Yorick »

KungFooBob wrote: Fri Sep 16, 2022 6:30 pm The Chunderace is only 5 speed, but apparently such a wide spread of torque you don't need the extra ratio.
It only had same torque as other litre bikes at the time.
Mine had helluva lot more and still needs gears.
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Re: 44 Teeth BBB

Post by Demannu »

Yorick wrote: Fri Sep 16, 2022 10:13 pm
KungFooBob wrote: Fri Sep 16, 2022 6:30 pm The Chunderace is only 5 speed, but apparently such a wide spread of torque you don't need the extra ratio.
It only had same torque as other litre bikes at the time.
Mine had helluva lot more and still needs gears.
The '21 fuel injected, variable valve timed, all singing all dancing gixxer has 7ftlb more than a carbed 96 thunderace.
Agreed it had a lot less weight to move.
But torque is a consequence of cc rather than hp, as witnessed by our American cousins.
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Re: 44 Teeth BBB

Post by Bigjawa »

All the big stuff had 5 gears back then
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Re: 44 Teeth BBB

Post by Couchy »

Demannu wrote: Sat Sep 17, 2022 11:21 am
Yorick wrote: Fri Sep 16, 2022 10:13 pm
KungFooBob wrote: Fri Sep 16, 2022 6:30 pm The Chunderace is only 5 speed, but apparently such a wide spread of torque you don't need the extra ratio.
It only had same torque as other litre bikes at the time.
Mine had helluva lot more and still needs gears.
The '21 fuel injected, variable valve timed, all singing all dancing gixxer has 7ftlb more than a carbed 96 thunderace.
Agreed it had a lot less weight to move.
But torque is a consequence of cc rather than hp, as witnessed by our American cousins.
What’s interesting is up to 10k revs the thunderace is as strong or stronger than most modern litre bikes HP and torks. On the road you’d have to ride your new litre bike at full throttle and above 10k revs for it to be making more power. That’s a big ask in a lot of places these days. Above 10k the newer bikes obvs destroy the thunderace but everyday riding it’s closer than anyone prob thinks.
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Re: 44 Teeth BBB

Post by Le_Fromage_Grande »

It's the same with 750s, my 2020 Suzuki doesn't feel any more powerful than my 1990 Yamaha unless your revving the tits off the Suzuki.
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Re: 44 Teeth BBB

Post by Mr. Dazzle »

Modern bikes tend to have shorter strokes and bigger bores for the same CC. That means they have more valve area and can rev higher, both of which give higher peak HP. Shorter stroke also gives less torque. So no great surprise that older bikes feel stronger in the bottom end.

My auld Trumpet is the extreme example of that, its stroke is larger than its bore*, something almost unheard of in modern fast bikes. It leaps off line at low revs though before running out of puff at 6500rpm.

*It's bore is actually very similar to a chunderace, but the stroke is more than an inch longer! Obviously it's 2 cylinders down as well though

A better comparison might be the KTM790 twin engine, which has the bore and stroke almost "mirrored" from my old 650.

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Re: 44 Teeth BBB

Post by Yorick »

Demannu wrote: Sat Sep 17, 2022 11:21 am
Yorick wrote: Fri Sep 16, 2022 10:13 pm
KungFooBob wrote: Fri Sep 16, 2022 6:30 pm The Chunderace is only 5 speed, but apparently such a wide spread of torque you don't need the extra ratio.
It only had same torque as other litre bikes at the time.
Mine had helluva lot more and still needs gears.
The '21 fuel injected, variable valve timed, all singing all dancing gixxer has 7ftlb more than a carbed 96 thunderace.
Agreed it had a lot less weight to move.
But torque is a consequence of cc rather than hp, as witnessed by our American cousins.
It's not about peak torque, but the spread of it. My 2019 GSXR1000 feels as though it could spin the wheel in 6th in the wet at tickover. I've had 7 GSXR1000s and while they have all gained power on each new model release, they all felt slightly torquier. This one pulls hard from tickover in top.
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Re: 44 Teeth BBB

Post by Mr. Dazzle »

Even if you buy a Ford Mustang with a stonking great V8 you still get it with a 10 speed auto these days. My new car has 9 gears (+2 reverse!).

More gears is always gonna be better for performance.

How do you even define "need" for a gear anyway?
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Re: 44 Teeth BBB

Post by Bigjawa »

Yorick wrote: Sat Sep 17, 2022 3:07 pm
It's not about peak torque, but the spread of it. My 2019 GSXR1000 feels as though it could spin the wheel in 6th in the wet at tickover. I've had 7 GSXR1000s and while they have all gained power on each new model release, they all felt slightly torquier. This one pulls hard from tickover in top.


It weighs a shedload less than a Thunderace though. I remember when the first Blades came out, everyone raving about the way they pulled when they were 15-20bhp down on the EXUP/Gixer11.

Plus the new bike will always have perfect fuelling compared to an old carbed one.
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Re: 44 Teeth BBB

Post by Bigyin »

Couchy wrote: Fri Sep 16, 2022 10:12 pm I like the idea of what they are doing, Fagan is ok to watch but the other dude it’s like a shit version of beavis and butthead with playground humour.
I agree completely…… ironically “the other one” Chris had the huge internet following as Baron Von Grumble on his vlogs whereas Al has been a bike racer and journo who has adapted to the vlog thing. Boothy is the same and I prefer both of their content most of the time
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Re: 44 Teeth BBB

Post by Asian Boss »

From memory the 1000cc Thunderace was a more aligned competitor to the 'Blade than 750cc bikes. At least when the 'Blade first appeared.

Again from memory, the 1996 GSXR750WT gave the 1992 'Blade a shoeing when it came out.
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Re: 44 Teeth BBB

Post by mangocrazy »

Mr. Dazzle wrote: Sat Sep 17, 2022 3:15 pm More gears is always gonna be better for performance.

How do you even define "need" for a gear anyway?
The first three bikes I owned all had 4 speed gearboxes and they all could have benefitted from 5 speeds. In particular the CB77 had a big gap between 3rd and 4th, which meant that you were constantly swapping between the two on fast(ish) uphill sections. Five equally spaced ratios would have made the bike much nicer to ride. That's how I wouild define 'need'; in the same way that a two-stroke needs six gears and could probably benefit from seven...
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Re: 44 Teeth BBB

Post by wull »

I don’t mind Chris tbh, at times he can be a bit of a fud but at other times he’s quite funny to watch. Fagan is much the same all the time, don’t mind him at all. They make a good combination, Boothy was a great addition to the team especially as Chris was taking a backseat to it all at least for a short period. I think he was struggling mentally so stepped back for a bit.
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Re: 44 Teeth BBB

Post by The Spin Doctor »

The Fireblade was pitched as giving 1000cc performance with the nimbleness of a 750.
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Re: 44 Teeth BBB

Post by Bustaspoke »

wull wrote: Mon Sep 19, 2022 11:24 am I don’t mind Chris tbh, at times he can be a bit of a fud but at other times he’s quite funny to watch. Fagan is much the same all the time, don’t mind him at all. They make a good combination, Boothy was a great addition to the team especially as Chris was taking a backseat to it all at least for a short period. I think he was struggling mentally so stepped back for a bit.
I like Fagan but I find Chris quite irritating,however they seem to work well together,don't know if it's deliberate but they reminds me of the dynamics of Top Gear back in the day.
For me,the BBB series are the best programmes that they make,lets see how this series pans out,& how much they actually spend on the £3000 bikes,the rear shock on that Blade needs sorting sharpish :shock:
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Re: 44 Teeth BBB

Post by dern »

The prices of YZF750Rs near here vary from 3k to 6k for apparently similar bikes in apparently good condition (as much as you can tell on ebay). A localish dealer has one at 6k for 15k miles.

It's a very appealing bike.
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Re: 44 Teeth BBB

Post by ChrisW »

A Triumph dealer not far from me eBayed one they'd taken for PX the other day. Looked pretty tidy, albeit with the usual 'needs carbs balancing' type of description.

Only went for £1950 - I'd have been tempted if it had been a better colour (it was the blue / purple).