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TTC


david bowen

Well Known and Active Website User
Non-VOC Member
I was asked what a TTC was! as there is part of in Australia,the only reference I can find is in PEI book one made in 1934 Comet special TTR engine Burman BAPCA gearbox made for Bill Clarke (Vincent HRD Director) for the Six Days Trial ?
 

A_HRD

Well Known and Active Website User
VOC Member
After the relative success of the TTR, customers were asking for a faster Series A than the Comet for the road. So more TTR engines were made and fitted into sexed-up Comet cycle parts - thus becoming the TT Comet Special - or TTC for short. Customers could choose what cycle parts they wanted fitted, e.g.: stainless racing tank as per TTR, alloy P1030337.JPG composite brakes as per TTR, TT Bramptons, alloy mudguards as per TTR - and so on. The Burman Close Ratio gearbox was also an option. But few of those were made. Unlike the road box, the gears each had 5 'dogs' for slicker changes. All in all, the TTC was an extremely fast and desirable road motorcycle - but the option was dropped after only a handful were made - when the Series A Rapide was announced.

Probably, the most famous TTC was TTC17 the "Cadwell Special". And special to me is TTC20 which is mine - photo attached.

For the road, most TTC engines received a 4X cam, slightly de-tuned from the 5X version. But the TTR slimmed-down flywheels were retained as were the polished crankcase internals and bronze head, etc, etc.

Peter B
 

vin998

Well Known and Active Website User
VOC Member
VOC Forum Moderator
There were 33 TTC Comet Specials made and all of them were in 1936 & 1937. There were no 1935 TTC bikes. Earlier bikes that were a bit special were called TT Replicas and the factory carried on making TT Replicas until early 1938.

The Bill Clarke bike that David refers to is in the works records as an experimental TTR machine and not a TTC Comet Special.

Simon
 
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david bowen

Well Known and Active Website User
Non-VOC Member
Thank all that is the info required, Peter going up to Arkaroola next week to service Doug's Comet 700 kms from here, your Dad will be pleased !
 

david bowen

Well Known and Active Website User
Non-VOC Member
There are 2 in Australia plus 1 of the Supercharged one being rebuilt, 1 in NZ ,and I think 1 in Japan The Cadwell Special had a Mat Wright designed 1948 Speedway engine fitted into a Series A pre war frame Built in the Vincent Service Dept. by Noman Brewster engine by Cliff Brown, the sad thing after this all the series A parts were sold of to Dealers parts not sold to dealers sold of for scrap, there was some Rudge parts still there they were bought by Ted Hampshire which he built into a Grass track bike, and was raced by a Vincent employee Dennis Burdett Coultes at Eaton Bray.
 

david bowen

Well Known and Active Website User
Non-VOC Member
Ted knew his Vincent's PCV right hand man from 1931 to 1953, George, the Tester! became George the famous Vincent racer and world record holder
 

vin998

Well Known and Active Website User
VOC Member
VOC Forum Moderator
Thanks Simon......

How many TTR's were made. I have heard many different amounts...

Robert
Robert,
Your question lead me to have a good look at the pre war records. Most Comet Specials had a TTC engine prefix, but three had TTR prefix but are still called Comet Specials on the works order form so I have revised the numbers slightly to Comet Specials 36 made.

The TTR bikes are difficult to count as some of the early works race bikes in 1935 & 1936 were TT and not TTR, but later works race bikes were TTR prefix. Also some of the bikes were rebuilt with new engines for the next years racing so bits get swapped around. Also one bike has a TTC engine prefix but is listed as a TT Replica as the model on the works order form.

So using the the model name on the works order form and not the engine prefix it works out at:
Comet Specials: 36
TT bikes (not replicas): 8
TT Replicas: 39

Simon
 

Clay

Active Website User
VOC Member
As you're looking at numbers, do you know the number of plain old Meteors and Comets made. I read that there were 444 Comets but would that include the Specials, TT's & TT Replicas?
 

vin998

Well Known and Active Website User
VOC Member
VOC Forum Moderator
As you're looking at numbers, do you know the number of plain old Meteors and Comets made. I read that there were 444 Comets but would that include the Specials, TT's & TT Replicas?
Again for various reasons its not that easy to accurately work out. This does not include specials, TTR etc:

Comets = 443
Meteor = 232
 

Graham Smith

Well Known and Active Website User
VOC Member
VOC Forum Administrator
VOC Forum Moderator
So it could be argued that the poor man's Meteor is now the more desirable of the two models?!
 

vin998

Well Known and Active Website User
VOC Member
VOC Forum Moderator
So it could be argued that the poor man's Meteor is now the more desirable of the two models?!
Most owners go for the Comet as they like the maroon & stainless tank, but approx 30 Meteors were also fitted with maroon & stainless. There was also 3 Meteors fitted with a dark blue & stainless tank. Maybe thats were the fabled blue Vincent's came from.

Simon
 

Albervin

Well Known and Active Website User
VOC Member
My "A" Comet had TT guards, 4X cam, 120 mph speedo, 8 day clock, XBAPH gearbox, pillion seat and no knee pads on the ss tank. It was made in 1938 when there were no TTCs made and cost well North of what a 1937 TTC sold for. Obviously people still wanted a fast 500.
 

mercurycrest

Well Known and Active Website User
VOC Member
My "A" Comet had TT guards, 4X cam, 120 mph speedo, 8 day clock, XBAPH gearbox, pillion seat and no knee pads on the ss tank. It was made in 1938 when there were no TTCs made and cost well North of what a 1937 TTC sold for. Obviously people still wanted a fast 500.
My Comet (Order # 133) didn't have the clock, nor the TT guards, but it does have knee pads plus the 4X cam etc.. Could it have been a "Stealth TT"? :rolleyes:
 

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