TRIUMPH T 100 R / T 100 RR . 1955/57 .

Turner spent half the year in the U.S. , where the competition development of the TRIUMPH evolved . T 100 R is 1955 , T 100 RR is 1957 ( splay port head )











Two either side courtosey , http://showandgo.blogspot.com.au/2009/0 ... 100rr.html

Re: TRIUMPH T100R / T 120 TT .





FROM , the Jockey Journal site . 1957 T100 RR , head . This is what they nailed on 650s . Turner following with the 59 T120 , first built 1958 .

Re: TRIUMPH T100R / T 120 TT .

Re: TRIUMPH T100R / T 120 TT .

Re: TRIUMPH T100R / T 120 TT .

European Market T 100 C ( competition ) Race Kit .

Re: TRIUMPH T 100 R / T 100 RR

That's awesome this thread made it's way over here! I started that T100/R thread on the Jockey Journal over 4 years ago, and it's evolved into the single most comprehensive database of info on the 1955 T100/R and 1957-1959 T100/RR racers. Ironically, I ended up selling off most of my T100/R and /RR stuff to buy a few Norton singles, but I still have a fully Race Kitted Tiger 100 motor. Very cool bikes indeed!

Re: TRIUMPH T 100 R / T 100 RR

130 , not bad eh .

Re: TRIUMPH T 100 R / T 100 RR

I Australia that bike was known as the T100C. I have only ever seen one in Melbourne, and we all used to covet it. I think the cylinder head would have had a smaller combustion chamber than the 650 head. I believe the crank was big journal, so it wasn't all bad. A 1973 unit construction motor is a better way to go for a classic racer. It has the proper bearing on the timing side, but getting a decent gearbox is a problem.

Re: TRIUMPH T 100 R / T 100 RR

Haveing run one , Id think the ' C ' is a different kettle of fish . Or not entirely similar . Ya Caint get 1 5/8 intakes in a 100 C ?? :?

Be intresting to do a comparo. May try and track the old girl down .Was race tuned around 1960 .The C.R.s were lower then for the Available gas
Octane Rateing . still , wasnt happy on pump gas 1980 . v smoother on Av Gas . Nothing ( much ) below 5.000 rpms.

Starting to abreciate the then known Quality of Triump products .It had had the timing case changed to B Bearing when found in a Milking shed .
Set up as a Dunger , Just Used Engine & Forks , with Tri C.R. box .Collected all the ridgid stuff inadvertantly as Id not known a ' R ' was then .
I ran it as Triton , which is what it was in in shed. wideline, C.R. Norton Box , Dunger tank and fairing . 1955 parralell intake .

Re: TRIUMPH T 100 R / T 100 RR

acotrel said:

I Australia that bike was known as the T100C. I have only ever seen one in Melbourne, and we all used to covet it. I think the cylinder head would have had a smaller combustion chamber than the 650 head. I believe the crank was big journal, so it wasn't all bad. A 1973 unit construction motor is a better way to go for a classic racer. It has the proper bearing on the timing side, but getting a decent gearbox is a problem.

Click to expand...

Didn't all the pre-Unit 500 twins have ballrace timing side main bearings?

Re: TRIUMPH T 100 R / T 100 RR

acotrel said:

I Australia that bike was known as the T100C. I have only ever seen one in Melbourne, and we all used to covet it. I think the cylinder head would have had a smaller combustion chamber than the 650 head. I believe the crank was big journal, so it wasn't all bad. A 1973 unit construction motor is a better way to go for a classic racer. It has the proper bearing on the timing side, but getting a decent gearbox is a problem.

Click to expand...

Didn't all the pre-Unit 500 twins have ballrace timing side main bearings?

Re: TRIUMPH T 100 R / T 100 RR

They Had whatever you put in them ; The ' Big Bearing / Little Bearing ' scenario is that the small ( Timing side ) bearing doesnt have a external bulge on the case centered on
the crank , under the timing cover . a ' Lip ' probably more accurately describes the circular protrubance , which contains the ' Large ' bearing later version .

The roller is to give ' End float Float ' to allow for the Alloy Crankcase expansion . however , Twin Ballraces will produce less drag . Tend to Shuffle in the houseing though .

Re: TRIUMPH T 100 R / T 100 RR

Did 500s get the big bearing that the 650s got in 1954 or 55?

Re: TRIUMPH T 100 R / T 100 RR

:?: "" Part Number 70-1591. Quality English made, stock replacement main bearings for Triumph 650 twins, 1955 to 1962, Also for pre-unit 500cc motors 1955-1958. Right and left side. Also for 650cc Triumph twins, 1963-1965 Right and Left. Also, right side main bearing 1966 to 1971."" :?

Re: TRIUMPH T 100 R / T 100 RR

Unit 500s were built with disgusting BSA/Turner penny pinching practices such plain bush timing side main bearing, pissy 250 single type gearboxes,& had to be beefed up when raced, dunno if B50/CCM gearbox bits are practicable/useable,& they really need a 6 speed, but Gary Nixon won Daytona on one, & Percy Tait finished 2nd to Ago in the very fast Spa G.P. on one in `69.

Re: TRIUMPH T 100 R / T 100 RR

Argh ; They Dont build them Like they Used To Its been all downhill since they brought in that Unit Construction . Trust the Japs to muck it up . It wasnt like this when My Grandmother was a Girl . Why I remember
Actually , They ( She ) had a nasty German Pilot tell them to 'Go away or He'd tell their Mother ', fidling with the Floatplane Engine with his Mech. up the Coast from Newcastle in W W 1 . 8)

So much for invinceable German Reliabiltity . :lol: Notta Lot related to the Mighty T 100 R and RR of the bleedy FIFTIES though . NOT the NASTY Unit Ones . Unless theyve got Twin 30s . :wink:

Re: TRIUMPH T 100 R / T 100 RR

Just to make clear......
Triumph
BSA
BMW
Sunbeam
Royal Enfield
and
Vincent
all made unit constructed motorcycles before "The Japs" even started producing motorcycles.

Re: TRIUMPH T 100 R / T 100 RR

Can someone post a link to the prev mentioned Jockey Journal posts on these models? I found a lot of JJ postings but not the one referenced,
I am very interested in these models, especially the frames, I have in my old shop inventory some great preunit parts and pieces,, including some T100 parts,, all alloy, plus the fluted brake drum, and best of all some Delta racing heads and handed mono blocs,,

I have a 1958 TR5 with a delta racing head, the whole bike, and I think enough parts for a T100 compy model, a few years back got 2 more delta race heads,
this last summer I bought a bastardized 1955 TR5,, its very restorable, and was thinking i might hot rod it, but several friends said restore the TR5, and use the hot rod parts on the T100s.

is the frames using a factory bolt on section on the stock factory front sections or are these R and RR models using up old pre swing arm rigid frames? (normally 1953 and earlier) I have some good Tricor and other period literature but not much on these R & RR models,

One of our local guys who is a board member of the local museum has 2 early rigid GP bikes,, one is the real thing, from BC Canada, the other is a replica of a GP Triumph built up from real period parts he collected over the years. the sounds out of those mega phones is music.

Re: TRIUMPH T 100 R / T 100 RR

Mark said:

Just to make clear......
Triumph
BSA
BMW
Sunbeam
Royal Enfield
and
Vincent
all made unit constructed motorcycles before "The Japs" even started producing motorcycles.

Click to expand...

You sure? When were the first Japanese bikes made?

Re: TRIUMPH T 100 R / T 100 RR

im no expert on early asian bikes, but i know i saw articles and information on some early Japanese bikes that were knock offs of American bikes (harley or Indian?) that were made in the 1930s under license. after hostilitys of course they kept making them. But I do know that there was japanese bikes built in the 1930s, dont know when unit construction was ever tried. thats my 2 pence