1967 Triumph Bonneville
MODEL LINE-UPThe 1967 Triumph Bonneville T120 650 continued to be developed and refined in incremental steps, sometimes one forward and two back. Model designations carried over from late-1966, that is, the TT Special now had it's own stand-alone model designation, the T120TT. This went along with the traditional T120R Road version, and the T120C off-road/street scrambler (what might have been called an enduro had it been introduced a few years later).
1967 Triumph Bonneville T120R
ROADSTER
ENGINEStarting with Engine # DU44394, new Hepolite pistons were fitted, then starting with Engine #DU47006, stronger connecting rods were installed to deal with the added stress. A hotter exhaust cam (E3134), and in the interest of better oiling for its lobes, things were done, then undone, then redone before settling on a timed oil feed to the tappet block. Chromed steel braces were added between the exhaust pipes and the front of the engine. UK bikes began fitting the smaller US-market mufflers.
GEARBOX Internal changes were made to the transmission (gearbox) including a new 2nd-gear shift fork & a near-total conversion over from British Standard threads to Unified (American) threads. This process would continue over the next few model years, during which time there was an odd mix of the two thread types, British & American. Two sets of tools were necessary during these transitional years, Whitworth & American.
NEW AMAL CONCENTRICS The big news for the 1967 Triumph Bonneville was the switch from Amal Monobloc carburetors to Amal Concentrics, starting with Engine #DU59320, now measured in mm instead of inches. They were 30mm & they had a choke for the first time on a Bonneville. Air filters were offered across the line, for the first time.
RUNNING GEAR The contract breakers received a new auto-advance mechanism & the alternator stator was now encapsulated in resin. An interesting aside: Starting with Engine #DU59230, Triumph stopped using Lucas bulbs & started buying their bulbs from Mazda.
Changes to the frame were minimal. A steering head lock was added & many of the fasters were changed over from British threads to Unified (aka American) threads. UK & Export models swapped their 18" front wheels for 3.25 X 19" rolling stock with Dunlop ribbed tires. US bikes kept 18" wheels on both ends, but the 4.00 X 18" rear tire option was gaining in popularity among America's desert racers.
1967 Triumph Bonneville T120
TT SPECIAL
PAINT & TRIMThe seat changed for the first time in years, getting narrower in front to match the new slimline tank & gaining a 'step' for the passenger, and was upholstered with lateral 'tuck-and-roll' ribs upholstery for the first time. Most US machines sported all-black seats, while most UK & Export models got 2-tone gray & black seats. All had the Triumph logo emblazoned on the back.
ABOVE: The 1967 Triumph Bonneville came in 2 basic color schemes: Aubergine (dark red) & Gold (as above); and Aubergine & Alaskan White (as on the top image). This example has the Aubergine & Gold paint job.
COLOR SCHEMES
Colors for 1967 varied more than ever before. UK and Export machines were Aubergine (a deep red) & Alaskan White, broken up in a new pattern on the tank. US bikes had two options: Aubergine & Alaskan White, just like the UK; or Aubergine & Gold. The US bikes were also painted in a different pattern than ever before, the lower color on the tank (either the Gold or the White) taking on a 'flying wing/windswept-shape', for lack of a better way of putting it. Oh and the Smiths magnetic speedometer now went to 150 MPH!
1967 Triumph Bonneville SPECIFICATIONS
Bonneville T120R Bonneville T120C Bonneville TT Special Engine type Displacement Bore & Stroke Compression Carburetors Ignition Engine output Primary drive Primary drive sprockets Clutch Gearbox Ratios, overall: 1st, bottom 2nd 3rd 4th, top Final drive Final drive sprockets Frame type Suspension, front Suspension, rear Brake, front Brake, rear Tire, front Tire, rear Fuel Capacity Wheelbase Seat height Ground clearance Weight, unladen
|
Roadster, low pipes Street Scrambler, high pipes Competition, TT pipes Air-cooled OHV vertical twin 649cc / 40.0 ci 71mm X 82mm / 2.79" X 3.23" 9.0:1 (T120) / 11.0:1 (TT Special) 2- Amal Concentric 30mm / 1-3/16" (TT) Battery & coil (T120) / Energy Transfer (TT) 49 bhp @ 6200 (T120) / 52 bhp (TT) 3/8" triplex chain X 84 links 29T X 58T Multi-plate, wet 4-speed constant-mesh, right-foot shift
11.8:1 8.17 6.76 5.84 5/8" X .400" X 3/8" chain X 106 links 19T X 47T Brazed lug, full-cradle, single downtube Telescopic fork, hydraulic damping Swing arm, 2 Girling dampers 8" SLS drum, full width 7" SLS drum 3.25" X 19" Dunlop 4.00" X 18" Dunlop 2.5 Imp gal (US) / 4 Imp gal (UK & export) 54.5" / 140.3cm 32.5" / 77.5cm 5.0" / 12.7cm 363 lbs / 165 kg
|
MORE TRIUMPH BONNEVILLES:
Triumph Bonneville
Triumph Bonneville Pre-Unit (1959-1962)
.....1959
.....1960
.....1961
.....1962
Triumph Bonneville, Unit-Construction(1963-1970)
.....1963
.....1964
.....1965
.....1966
.....1967
.....1968
.....1969
.....1970
Triumph Bonneville, Oil-in-Frame
.....1971
.....1972
.....1973
.....1974
.....1975
.....1976
.....1977
.....1978
.....1979
.....1980
.....1981
.....1982
.....1983
Les Harris Bonnevilles(1983-1989)
OTHER TRIUMPHS:
Triumph TR6
Triumph TR7
Triumph Trophy
Triumph Tiger
Triumph Thunderbird
Triumph Trident
Triumph X-75 Hurricane
Check out these TRIUMPH BOOKS


2018 Classic Triumph Calendar


Triumph Motorcycles: The art of the motorcycle


The Complete Book of Classic and Modern Triumph Motorcycles 1937-Today (Complete Book Series)


Triumph Motorcycles: From Speed-Twin to Bonneville


Triumph Bonneville and TR6 Motorcycle Restoration Guide: 1956-83


British Motorcycles Triumph (Little Books)


Triumph Motorcycles in America


McQueen's Motorcycles: Racing and Riding with the King of Cool


Triumph Motorcycle Restoration


Illustrated Triumph Motorcycles Buyer's Guide: From 1945 Through the Latest Models (Illustrated Buyer's Guide)


Tales of Triumph Motorcycles and the Meriden Factory


Hinckley Triumphs: The First Generation (Crowood Motoclassic)
For more like these, visit our
TRIUMPH BOOK STORE


Comprehensive Vintage Motorcycle Price Guide 2020-2021
Please visit our
MOTORCYCLE BOOK STORE
Take a tour of our site...
HOME PAGE
Triumph Motorcycles
.....Bonneville
.....Tiger
.....Trophy
.....TR6
.....TR7
.....Trident
.....X-75 Hurricane
.....6T Thunderbird
.....5T Speed Twin
.....Daytona
.....Twenty-One
.....3T 350 Twins
BSA Motorcycles
.....A65
.....A10
.....A7
.....Gold Star
.....Bantam
.....Rocket 3
.....B50
Norton Motorcycles
.....Commando
.....Atlas
.....Dominator
.....Model 7
.....Manx
.....Navigator
AMC-Associated Motor Cycles
Matchless-AJS Motorcycles
.....G3
.....G9
.....G12
.....G80
Royal Enfield Motorcycles
.....Interceptor
.....Bullet
Ariel Motorcycles
.....Square Four
.....Red Hunter
.....Cyclone
Vincent Motorcycles
.....Black Shadow
.....Rapide
.....Comet
.....Egli-Vincent
Velocette Motorcycles
.....KSS
.....KTT
.....LE
.....MAC
.....Thruxton
.....Venom
.....LE
Rickman Motorcycles
Japanese Motorcycles
.....Honda
.....Kawasaki
.....Suzuki
.....Yamaha
Cafe Racers
....Triumph Cafe Racers
.....Norton Cafe Racers
.....Other Cafe Racers
Choppers & Bobbers
.....Choppers
.....Triumph Choppers
.....BSA Choppers
.....Rat Bikes
Classic Racing Motorcycles
Classic Motorcycle Events
.....Auctions
.....Shows
.....Rides
Classic Motorcycle Restoration
Classic Motorcycle Shops
Classic Motorcycle Clubs
Send us Pictures of YOUR BIKE
YOUR BIKE Pictures
HOME PAGE
.....About Us
.....Site Map
.....CONTACT US
.....Please visit our BLOG
.....Subscribe to our FREE e-zine BRIT IRON
.....BRIT IRON E-zine Back Issues
Visit our STORES
.....Motorcycle Books
.....Motorcycle Magazines
.....Motorcycle Calendars
.....Motorcycle Accessories
..........Motorcycle Helmets
..........Motorcycle Rain Suits
..........Motorcycle Locks & Security
..........Motorcycle T-Shirts
..........Motorcycle Diecast Models
..........GoPro Cameras
.....Motorcycle Parts
..........Motorcycle Tires
..........Motorcycle Chains
..........Motorcycle Batteries
..........Motorcycle Handlebars
.....Motorcycle Tools
..........Whitworth Tools
..........Tire Tools
..........Chain Tools
Crazy about cars, too? Check out our sister site:
www.American-Muscle-Cars.net
Back to top - 1967 Triumph BonnevilleLast updated 12/12/20
Learn how to BUILD YOUR OWN WEBSITE, like I did.