Archive for ‘Engineering’

June 5, 2019

ATGATT

Helmet | Job Done! Wearing suitable safety gear is of prime importance when selecting your riding garb. And the bonce is your main body part that needs the best protection. I never skimp on this component. The Bell full face lid I got a couple of years ago took last weekend’s spill in workmanlike form; with scrapes, scratches and no doubt a thumping from the road. It’s retired now, as a helmet should be after a crash, and will be replaced.

March 31, 2019

Zzzzzzzz

Nessun Dorma | The aria from Puccini’s opera Turandot was famously used for the BBC coverage of the World Cup in ’90. Sung in true maestro style by Pavarotti it was also used by Pirelli tire manufacturer in their late 80’s advertising campaign. Direct translation from the Italian is “None shall sleep” so using it for a tire seems appropriate. So, back to the matter at hand: these are the two tires I got for the Tiger from old new stock at Motoworks yesterday. Knobbly treads for a bit better traction on gravel. I need to go look for some back roads now! Heidenau K60 Scout up front and Continental TKC 80’s in back. This combination is meant to be a good balance for compromise between asphalt and loose dirt.

February 11, 2019

Wrenchin’

Oily hands and a 10mm socket – just read about the passing of the creator of the global mechanics phenomenon, known as the Haynes Workshop Manual, John Haynes (1938-2019) aged 80. The step-by-step photographic and illustrative descriptions of dismantling and reassembly was conceived whilst he was a public schoolboy recording the renovation of an Austin Seven into an Austin Seven ‘Special’. The first published book in ’66 was for an Austin Healey Sprite. Hundreds of manuals for cars and motorcycles later the library stretched from the Solo’s Millennium Falcon, Kirk’s Enterprise to NASA’s Space Shuttle, and Apollo.

February 6, 2019

Bookworm

D-I-Y Sometimes you need some ken to be familiar with your interest. A ubiquitous Haynes Service & Repair Manual is an essential reference tome for any self respecting biker.

January 26, 2019

Jon Snow

Winter Fun – I need one of these! Chopper Triumph with street sign plow blade. I’d take the Chevy truck too! We have icy conditions here in the Midwest and expect even colder weather next week… minus 15°F

January 9, 2019

Fettled & Fast

Pops – The post-war period in Japan saw a push in engine tuning to wring out any available additional horsepower to not just be faster but the fastest. This would eventually lead to the superbikes of the seventies and eighties and the current flock of hyper sports.

Leading this evolution of power and speed was Hideo ‘Pops’ Yoshimuro (1922-1995). After maintaining aircraft for the Japanese Empire during WW2 he redirected his masterful talents to the British bikes being brought to the land of the rising sun by American servicemen. This photo shows our man astride a fettled BSA preunit drag bike readying for a speed run.

Later he shifted his works and racing team to California where big reliable Japanese superbikes like the Kawasaki KZ and Suzuki GS’s went on to dominate the burgeoning AMA road racing circuit.

January 2, 2019

R1-D1

I, Robot – in 2017 Yamaha displayed their autonomous riding motorcycle being hurled around a racetrack at speed. Today is the 99th birthday of science writer Isaac Asimov who created the three rules of robotics:

  1. First Law – A robot may not injure a human being or, through inaction, allow a human being to come to harm.
  2. Second Law – A robot must obey the orders given it by human beings except where such orders would conflict with the First Law.
  3. Third Law – A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.
October 21, 2018

Star Gazer

An Eye on the Universe – today’s destination for a Fall ride was the 120 year old Yorkers Observatory, which houses the world’s largest refracting telescope. A 40″ diameter lens that provided important findings in the early years of 20th Century astrophysics. It is located at Williams Bay on Lake Geneva in Wisconsin. As of October 1st is is no longer under the management of the University of Chicago and is not open to the general public.

September 28, 2018

Eyes Up!

Details – motorcycle events are truly marvelous places to gaze at the intricacies of mechanical engineering found on two wheels. Polished parts; crafted components; detailed design; and triumphant technology.

September 20, 2018

20 liters

Jerry Can – the cunning folk at Icon 1000 have given this Tiger 800 a definite utilitarian brutish appeal. With a finish like machine pressed galvanized steel sheet, ready to roll through some dystopian military industrialized kingdom.

June 21, 2018

L’orange

Deux Chevaux – like some giant upturned orange wheelbarrow this Citröen 2CV was parked up near Morries Place last weekend. Developed in France after the 2nd World War as an economical family transport it was spare in detail but complete in purpose. Over 9 million of these cars and their variants were manufactured over 42 years. It’s up there in motoring history with the Ford Model T, VW’s Beetle, Fiat’s 500, and BMC’s Mini.

June 19, 2018

One, Two, Three, Four

Four Square- more offerings from the Ringwood motorcycle emporium. Delicious BSA Goldstar in immaculate condition, one lung and splendid mirrored chrome tank emblazoned with the gold star representing Wal Handley’s ton lap at Brooklands in ’37. Green lane ready Triumph Trophy Trail, half liter of long legged fun. Norton & Beeza goodies: one a TT special willing for speed, the other a doughty sloper ready for a lazy countryside jaunt. Finally a hefty Laverda 3C Triple, 1000cc of Italian grunt; just need a quiet afternoon along Lago Maggiore…

June 17, 2018

Orange is not the only fruit

Hurricane – in an attempt to win over a flagging US customer Triumph and BSA employed industrial designer Craig Vetter to create bodywork for the new and fast triple that would appeal to the American market. Though a BSA Rocket Three at heart, by the time the X75 was released it was emblazoned with a Triumph badge. The deep orange with yellow swoosh are inspired with an hourglass shape that provides a sexy line to this muscle of a motorbike. Triple stacked silencers on the timing size are keenly futuristic. This example was built by Ed Zender for a customer. He says it runs well with a powerful and tight power unit. In the sun it’s a sublime example of a special British motorcycle.

June 2, 2018

Dog Rider

Hound – it takes a canine nose to enjoy the fast winds from a moving vehicle. Especially if it’s a cafe racer. Be-goggled pup smiles and wags their tail to promote speed conjuring components.

April 5, 2018

Moto Parameters

Specifications

Make Model

Triumph Trident T150 750

Year

1968 – 70

Engine

Tansverse three cylinder, pushrod OHV, 2 valves per cylinder

Capacity

741 cc / 45.2 cu in

Bore x Stroke

67 x 70.5 mm

Compression Ratio

9.0:1

Cooling

Air cooled

Lubrication

Dry sump

Induction

3 x 26 mm Amal MK1 carburetors

Ignition

Individual points & coils

Starting

Kick

Max Power

58 hp @ 7250 rpm

Transmission

4 Speed, constant mesh

Final Drive

Chain

Gear Ratios

1st 13.00 / 2nd 9.00 / 3rd 6.64 / 4th 5.26:1

Frame

Single downtube, duplex cradle

Front

Telescopic fork, hydraulic

Rear

Swingarm, dual shocks

F Brakes

8 in TLS drum

R Brakes

7 in TLS drum

Front Tyre

3.25-19, Dunlop K70

Rear Tyre

4.10-19, Dunlop K70

Dimensions

Length: 86.0 in

Width:   33.0 in

Height:  43.5 in

Wheelbase

56.3 in

Ground Clearance

6.5 in

Seat Height

32 in

Dry Weight

460 lbs

Fuel

5.0 US gal / 4.2 Imp gal

Top Speed

105 mph