TRIUMPH ROCKET III

Posted on 7:39 PM by Niranjan




Rocket III is in possession of fine balance. Of course it demands respect on all levels but it remains a truly useable machine, and will tour highways, cruise streets and hustle turns with effortless ability. The Rocket III may be the largest capacity production motorcycle in the world but it's designed to be ridden.True individuality is rare and the Rocket III has forwever defined a complete generation of motorcycles. Everything about it is special. Its muscular performance, stunning looks, attention to detail and monumental presence are simply unique.Which means the Rocket III is a truly extraordinary bike..



ENGINE

Triumph has long been known for its innovative three-cylinder designs, but the DOHC liquid-cooled engine breaks new ground. Each piston measures over 4 inches .Triumph claims 147 ft.-lbs. of torque at 2,500 RPM and 140HP at 5,750 RPM for the oversquare fuel-injected mill. All this power should give the 704-pound (dry) juggernaut a 0-60 time of around 2.8 seconds, and a 0-100 time of just over 7 seconds.Power is laid down through a five-speed gearbox, shaft drive (a first for Triumph) and an impressive 240/50-16 rear tire.Stopping the beast are twin 320mm discs and four-piston calipers from the firm's Daytona 955i sportbike in the front, and a 316mm disk with a twin-piston caliper out back.Cruiser-style ergos should make this performance easy to handle. Seat height is set at a surprisingly low 29.1 inches, and the reach to the forward-mount footpegs and pullback handlebars.

DESIGN


They started work with David Stride, Gareth Davies and Rod Scivyer, building on the unusual configuration of the Speed Triple's twin headlights, working around an in-line three cylinder engine. At the start of the project in-line four and a V6 engine configurations were looked at but the longitudinally mounted triple design quickly took hold and the design concept code named C15XB Series S1 was born. Mockett experimented with ‘futuristic’ styling that included "raygun" mufflers and a large chrome rear mudguard, but consumer focus groups didn’t like it - although the concept was generating a lot of interest.

RIDE AND HANDLING


The model was a simplified version with a more traditional rear mudguard and several features that were to make it through to the final design. Once again, the feedback from market research was that it was still too radical so the lines were simplified and smoothed out to create the next Series . This was agreed as the final look and with a few refinements, the project started in earnest.The final design of the bike prototype had a large tubular steel twin-spine framed, designers are responsible for designing the gearbox and shaft drive to a 240/50ZR16 bike specific rear tyre. High specification front brakes were twin four-piston callipers with 320 mm floating discs and the rear brake, developed specifically for the purpose, was a single twin piston calliper and 316 mm disc. Ride handling is controlled by purpose built rear shocks and 43 mm 'inverted' front forks

PRICE--Rs 12,00,000

SPECIFICATION
ENGINE
Type Liquid-cooled, DOHC, longitudinal in-line 3-cylinder, 12 valves
Capacity 2294cc
Bore/Stroke 101.6 x 94.3mm
Compression Ratio 8.7:1
Fuel System Multipoint sequential electronic fuel injection
Ignition Digital – inductive type – via electronic engine management system
TRANSMISSION
Primary Drive Gear
Final Drive Shaft
Clutch Wet, multi-plate
Gearbox 5-speed

DIMENSIONS
Length 2480mm (97.6in)
Width (Handlebars) 880mm (34.6in)
Height 1150mm (45.3in)
Seat Height 740mm (29.1in)
Wheelbase 1690mm (66.5in)
Rake/Trail 32ยบ/152mm
Weight (Dry) 320kg (704lbs)
Fuel Tank Capacity 25 liters (6.6 gal US)
PERFORMANCE (MEASURED AT CRANKSHAFT TO DIN 70020)
Maximum Power 142PS (140bhp) at 5,750rpm
Maximum Torque 200Nm (147ft.lbf) at 2,500rpm




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SUZUKI INTRUDER M1800R

Posted on 8:18 PM by Niranjan



Suzuki Intruder M1800R is a top notch performer trying to be in fray with the Harley Davidson in particular. The sports cruiser is derived from the superior technology with the advanced features to deliver the much desired high-end performance for any kind of terrain. Suzuki Intruder M1800R commands a unique style statement that leaves the bike lovers with the burning desire at the very first sight. The radiant look with the metal on Intruder M1800R tantalizes anyone for a test ride. The back tyre is very huge and rises to the right point proportionate with the seating posture of the rider. The seat saddle looks dipped and is exclusively for single rider. The weight of the bike is almost twice that of a GSX R1000. The pipes are dual cut and they are curved beautifully towards the rear end and the side stand of the bike is something that's so artistically designed and conceived. No wonder the machine has become quite popular since its launch among the die-hard biking population.

ENGINE


The power of Intruder M1800R is sourced from the V-twin, 1783cc engine equipped with revolutionary SDTV (Suzuki Dual Throttle Valve) digital fuel injection system, liquid cooled, DOHC and four valves per cylinder. Each cylinder is coated with SCEM (Suzuki Composite Electrochemical Material which makes them hardy and heat resistant). Suzuki Intruder has the largest engine pistons than any other motorcycle. The huge 112mm aluminum-alloy piston is a product of race-proven design to give an envious performance on the road and the track. The power is awesome with125 Bhp @ 6200 rpm and commands an incredible torque of 160 Nm @ 3200 rpm with electronic ignition and compression ratio of 10.5: 1.

DESIGN AND COMFORT


The Intruder M1800R is a massive cruiser with height of 1185mm, width 875mm and the length is no less than 2480mm. The exquisite look of the bike is not only accentuated by the stylish side stand, the LED taillight assembly and headlight cover also add to overall look of the bike. The low massive tank, the huge headlamp, the enormous aluminium handlebar, bespoke alloy wheels and a colossal 240-section rear tyre are all modern-day absorbing chopper-like features. Everything on this bike is large and with the generous amount of chrome adorned all over the bike, it's definitely an eye-catcher. The hyper cruiser, M1800R reflects a perfect blend of styling, extraordinary torque and raw power. Suzuki Intruder M1800R is just huge and the Japanese company Suzuki intended to make it different from all the other cruisers.

RIDE AND HANDLING



Suzuki Intruder M1800R boasts of great brakes but in an undulating terrain when we have to shift gears, the ride can get bumpy occasionally. However, in normal road conditions, riding Intruder M1800R is an exciting opportunity tht is mostly taken down beneath its huge fuel tank and also to the front of the rider to give an easy manoeuvrability. The seat height becomes lower than the Triumph's III and makes it easily manageable. This is a commendable feature and the more one rides the bike the better one feels. To feel the difference. The front suspension of Suzuki Intruder M1800R is inverted telescopic, oil damped and coil spring while the rear suspension is the link type. The tubeless tyres offer greater stability and gripping on the road. A big bike but with remarkable balance. The bike weighe bike adjusts so well in U turns and it become a child's play once a rider gets used to the bike.

PRICE--12,50,000

SPECIFICATIONS

Engine

Type

Four stroke, 2-cylinder, liquid-cooled, DOHC, 54° V-twin

Displacement

1783 cc

Max. Power

125bhp at 6200RPM

Max. Torque

16.3kgm at 3200RPM

Suspension

Front Suspension

Inverted telescopic, coil spring, oil damped

Rear Suspension

Link type, coil spring, oil damped

Brake

Front

Disc, twin

Rear

Single disc

Tyre

Front Tyre

130/70R18 M/C 63V tubeless

Rear Tyre

240/40R18 M/C 79V tubeless

Dimensions

Wheelbase

347 kg

Kerb Weight

1710 mm

Fuel Tank Capacity

Fuel Capacity

19.5 ltrs



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YAMAHA YZ250F

Posted on 10:44 PM by Niranjan


The story on how the new Yamaha YZ250F runs and works on the track, take a look at what it's made of with Dirt Rider's first look.

while we were expecting for fuel injection, YZ250F comes with a Carburettor., This motor gets better breathing, lighter valve-train components, more efficient combustion and a new exhaust system starting at the cylinder head porting.

Bottom end improvements range from new gear ratios and strengthening as well as clutch leverage and spring rate changes.

Interestingly, the power improvements across the boardare designed, and this is a direct quote, to, "Improve power while reducing noise."

New Airbox shape


This is designed to straighten and smooth the intact tract from air filter to carb. The smoother and straighter the path from air to fire, the better-especially for fuel injection (which we expect to see next year on the YZ250F. The entire air filter is shifted to the left 10mm.

New Carburettor with new Bore Venturi Shape and new settings:

Continuing the straight-shot air management, Yamaha designed an all-new carbUrettor body.. The accelerator pump cam is changed for quicker fuel delivery. Also, the jetting is changed to the richer side of things. Yamaha is going for a good "torques" feel at low RPM while delivery the best response possible under quick openings.

New Cam Profile:

The YZ250F's intake cam profile is changed for better low end to mid-range power and response. The Yamaha YZ250F took a little beating in the past from the press for being a bit sleepy on the bottom. Maybe this will silent that. The cam now has 7.7mm of lift versus the 7.6mm from last year while maintaining the same cam timing. That means the valves are opening a bit more but opening at the same time-basically. There is a hard surface treatment applied to the very top of the valve stems, too. Yamaha's proven YZ250F valve durability should see an improvement with the fancy hromium Nitride coating.

Valve Spring Retainer Changed From Steel to Aluminium:

Lighter is better and with the reduced load on the spring thanks to the Aluminum retainer, the spring rate can also be lightened. The intake spring load is reduced 12% and the Exhaust spring load is reduced 9%. Reduced friction and better low-end to mid-range power and response are the goals.

Exhaust Port Shape Is Changed and Volume is Reduced:

Yamaha wants its exhaust gases to have more velocity so it shrunk the exhaust port into a D-shape. Guess why. Yep, for better throttle response.

New Exhaust System:

Yamaha went back to (after going away from) a two-step mid-pipe for 2010. It steps up from 45 mm to 50.8 mm right after it attaches to the frame. Further back the muffler grows 50mm and gets a reduced core diameter. Inside, the "pipe perforation pitch" (meaning the amount of holes, really) changed from 4-5mm. That means the less holes and they are farther apart. The muffler mount changed from rubber to solid metal-on-metal. All this to reduce sound without reducing power from the new Yamaha YZ250F.

Clutch Modes:

Internally, Yamaha YZ250F clutch basket center boss gets hardened material for more durability and the clutch arm ratio and clutch spring load are both increased. The result? Easier lever pull (3% easier) with stronger engagement and wider engagement area feeling. That means less herky-jerky clutch on-off action.

Transmission updates:

Gear strength is increased in 3rd, 4th and 5th gears with 3rd and 4th getting a slightly taller ratio. That's like a half tooth difference on a rear sprocket. There is also some revision to the drive dog shape. Stronger, better engagement is what Yamaha is looking for here.

Ignition:

Ignition mapping is changed to match all the intake and exhaust specifications for the 2010 Yamaha YZ250F.

New Radiators and mounting/hose routing:

The 2010 Yamaha YZ250F radiators mount 15mm lower and 10mm farther back than 2009. Also, the hose routing changes and the mounting points increase from two to three. This makes stronger radiators without the external bracing we've seen in the past.

PRICE---3,60,000

SPECIFICATIONS

Engine Type

Single-Cylinder

Cylinders

1

Engine Stroke

4-Stroke

Cooling

Liquid

Valves

5

Valves Per Cylinder

5

Valve Configuration

DOHC

Compression Ratio

13.5:1

Starter

Kick

Fuel Requirements

Regular

Fuel Type

Gas

TRANSMISSION:

Transmission Type

Manual

Number Of Speeds

5

Primary Drive (Rear Wheel)

Chain

WHEELS & TIRES:

Front Tire (Full Spec)

Bridgestone® 80/100 R21

Rear Tire (Full Spec)

Bridgestone® 100/90 R19

BRAKES:

Front Brake Type

Hydraulic Disc

Rear Brake Type

Hydraulic Disc

TECHNICAL SPECIFICATIONS:

Wheelbase (in/mm)

57.7 / 1465.6

Fuel Capacity (gal/l)

1.7 / 6.4

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