1955 TWN Cornet

TWN (Triumph Werke Nurnberg)


German triumph bicycle of works AG, , Nurnberg. Siegfried Bettman a co-founder of the British Triumph motorcycles formed a subsidiary in Nurnberg, the "German Triumph bicycle Works AG" in 1896, and in 1903 like its English partner began the production of motorcycles. In 1909 following a fall in demand for motorcycles they started production of the Triumph typewriters. By 1928/29 Triumph had become the third largest manufacturer with 13,500 units produced after DKW and Zuendapp, and in the year 1929, they separated from Triumph Coventry, and continued to develop and produce 350cc versions using Sachs and MAG 2 stroke engines. But due to legal arguments with Triumph UK the German Triumph models were exported under the Orial badge, and after protest from a French company of the same name they changed to "TWN" for Triumph of Works Nurnberg. Resuming production in 1948 after the II world war with a range of utility two-stroke split singles of 125cc to 350cc, some with rotary valves. They also branched into the production of moped and scooter models. In the autumn 1956 Triumph teamed up with Hercules and Eagle (Frankfurt) but production was however short lived and the company was taken over by Grundig in 1957, reverting to the manufacture of type-writers.



1955 TWN CornetTechnical details


Manufacturer:
Year: 1896-1957
Engine: 197cc, 2 strokes Split single
Transmission: 4 speed
Weight: 266 lbs


Please note : This bike has many mixed parts from different models, still got electrical problems, starts but after few run overheats and stops......so kept idle now for future restoration...... Muthu sir.....one more for you

I am glad for saving this bike ending up in scrap yard

Split Single Engine

TWN Cornet .....continues .....

Split Single Engine

The concept was adopted by Ing Zoller in 1931 and was to make DKW (Germany) the dominant racing motorcycle in the Lightweight and Junior classes during the pre war years.
The idea of a split single was to have the exhaust port open before the transfer ports then close before the transfer ports thus preventing loss of fresh charge out the exhaust. The traditional two-stroke engine allowed the charge to flow straight across the cylinder and out of the exhaust port with the exiting burnt gasses despite port angling and schnerle ports. This layout gave a smooth power delivery with no 'four stoking' and excellent high end performance. Good tractability from low revs and 20% improvement on fuel consumption.
A major drawback of the design was the mass of the pistons and con-rods when compared to a conventional single leading to vibration, which could also lead to other problems on the bike. Also high fuel consumption on high performance machines.

@girishpv
Tell me one bike you do not know!!!!
I'm generally good with bike knowledge around my friends circle but you will make me look like a puny Suvega in front of the mighty R1. BTW I guess you know a moped called panther. Ane idea sire??

PS: Naanu mangaluru baruvaga nodonri(I aint' sure if it is correct since its been a long time since I left karnataka).

@harishkumar......there are many more vehicles that I still don't know

Over the years, by research, reading and with the help of Guru's like Muthu Kumar and many more , I keep on recording details of every vehicle whenever available.

I am still a small fish in the ocean......

PS : correct.....good u still remember Kannada

Hero Panther ........(subject to correction from experts)

Produced by - Majestic Auto Ltd, Ludhiana Punjab

The two stroke air cooled petrol engine delivers power of 2.5 bhp @ 4500 rpm. The engine capacity 49 cc and its light weight of 57 kg.


TECHNICAL SPECIFICATIONS


ENGINE
POWER 2.5 bhp at 4500 rpm
TYPE Single Cylinder Two Stroke air cooled Petrol Engine.
BORE 40 mm
STROKE 39 mm
DISPLACEMENT 49 CC
TRANSMISSION Single Speed
STARTING SYSTEM Kick Start
CHASSIS FRAME TYPE TUBULAR
WHEEL BASE 1135 mm
GROUND CLEARANCE 150 mm
DRY WEIGHT 57 Kgs
SUSPENSION

FRONT Telescopic with Springs
REAR Swinging Fork with hydraulic Shock Absorbers.
BRAKES

FRONT Internal Expanding Brake Drum Dia 80 mm
REAR Internal Expanding Brake Drum Dia 100 mm
TYRES FRONT 2.5 x 19" 6 Ply
REAR 2.5 x 19" 6 Ply
IGNITION Electronic (CDI)
ELECTRICAL SYSTEM 12 V, 40 W
MAX. SPEED 50 Kmph
CLUTCH Centrifugal Automatic
TANK CAPACITY (LTRS.) 2.75
MILEAGE 81 (KMPL under ideal test conditions)

1967 Lambretta Li150 S3

1967 Lambretta Li150 Series 3

Engine - 148cc , Two stroke single cylinder air cooled
Bore - 57mm
Stroke - 58mm
Compression ratio - 7.5
Transmission - 4 speed
Power - 6.6bhp @ 5300rpm
Weight - 231lbs


PS - Front horn cast badge and side panel badges are already bought

Girishpv - The picture of Cornet where someone is at the garage revving hard, have seen this same pic in Powertrain Muthu sir's thread. Am I correct?
Is there a connection?

@SriramEfunds ......

Right sir......

Actually I got the bike restored in Mangalore. As it had electrical problems, took it to Coimbatore to Muthu sir's garage for further repairs.

The previous mechanic tried all sort of things like used Hero Honda CDi unit etc......completely screwed up the system.

Its still waiting for complete engine overhauling and electrical repairs.

cheers

Lovely collection Girish. Apart from vintage stuff, do you own any performance 2-strokes like RZs or NSRs or RGs?

@karthik......not really any performance bikes apart from RD 350

cheers

Girish here's my contribution: an advertisement of the Hero Panther.

Wow....that's nice frank.....Thanks

1986 rd 350

Here is my 1986 RD 350......

All of you aware of this beast....so not boring with other details

havent seen a rd is such good condition in a long time , even the switchgear is the original one, hats off to you sir

Thank you Kb100 ......

As I am living close to sea shore....the bike's look has faded now....need bit of TLC, which will be done soon.

Thanks and regards

Can help with sourcing the side panel fins, Timing cover "Licence Yamaha" anodized plate and original Speedo-Tacho set for your bike.

PM me if u r interested.