Showing posts with label Yamah. Show all posts
Showing posts with label Yamah. Show all posts

Friday, March 11, 2016

yamaha motorcycles for sale

Developed without compromise using YZR-M1 MotoGP technology, the R1 was born for the track. 200PS, 199kg and 1,405mm wheelbase give an insight into its capabilities. But it's what you can't see that makes this focused superbike so special.

Its central nervous system is a 6-axis Inertial Measurement Unit that constantly senses chassis motion in 3D, creating controllability over traction, slides, front wheel lift, braking and launches.

Producing 200PS, the R1's new 998cc inline 4-cylinder, 4-valve engine is one of the most powerful in a bike. And with its M1-derived crossplane technology, this next generation superbike pushes out strong linear torque with outstanding traction.

The short wheelbase Deltabox chassis features a magnesium rear frame and long swingarm for outstanding handling on the track. Race developed suspension and magnesium wheels show that this bike is a serious contender to be the numero uno.

But what really takes the cake is the R1's high tech electronic control technology. By offering precise control, every rider has the chance to reveal their true potential.

                                                                ENGINE

Engine type
liquid-cooled, 4-stroke, DOHC, forward-inclined parallel 4-cylinder, 4-valves
Displacement
998 cc
Bore & Stroke
79.0 mm x 50.9 mm
Compression ratio
13.0 : 1
Maximum power
147.1 kW (200.0PS) @ 13,500 rpm
Maximum torque
112.4 Nm (11.5 kg-m) @ 11,500 rpm
Lubrication system
Wet sump
Clutch type
Wet, Multiple Dics
Carburettor
Fuel Injection
Ignition system
TCI(digital)
Starter system
Electric
Transmission system
Constant Mesh, 6-speed
Final transmission
Chain
DIMENSIONS
Overall length
2,055 mm
Overall width
690 mm
Overall height
1,150 mm
Seat height
855 mm
Wheelbase
1,405 mm
Minimum ground clearance
130 mm
Wet weight (including full oil and fuel tank)
199 kg
Fuel tank capacity
17 litres
Oil tank capacity
3.9 litres

CHASSIS
Frame
Aluminium Deltabox
Front suspension system
Telescopic forks, Ø 43 mm
Front travel
120 mm
Caster angle
24°
Trail
102 mm
Rear suspension system
Swingarm, (link suspension)
Rear travel
120 mm
Front brake
Hydraulic dual disc, Ø 320 mm
Rear brake
Hydraulic single disc, Ø 220 mm
Front tyre
120/70 ZR17M/C (58W)
Rear tyre
190/55 ZR17M/C (75W)

Wider Radial Rera Tire

With a width of 130 mm, the rear tire adds to the sense of machine volume A radial tire is a tire formed around a "carcass" consisting of a radial ply with cords that run in a perpendicular to rolling direction, as if "radiating" out from the center of the tire to the two rims. The advantages of a radial tire are: (1) a high level of rigidity that reduces excessive flexing of the tread and increases grip and (2) reduced rolling resistance that contributes to better fuel economy.


The rubber compound and tread pattern, the crossing angle of the belts and the amount of turn-up in the radial carcass are designed for the optimum mutual balance to achieve excellent handling characteristics.

Thursday, March 10, 2016

Linked type monocross suspension

YZF-R15s is equipped with a linked type monocross suspension that delivers a comfortable ride and a cushioning performance that is less prone to bottoming out. In particular, it reduces annoying "sinking" when riding tandem. The linked monocross suspension consists of a link mechanism sandwiched between the rear arm and cushion unit to create changes in the lever ratio based on the lever effect. When the shock absorber is almost fully extended, the lever ratio is high and therefore the spring is soft, and the damper works softly as well. As the shock absorber strokes in, the lever ratio gradually decreases and the spring rate increases. Eventually, when it is nearly fully stroked in, the lever ratio becomes small and the spring becomes hard and strong. The damper also becomes hard. By making changes to the lever ratio in this way, we were able to achieve soft riding comfort as well as excellent damping under intense load conditions. The optimization of the frame and rear arm rigidity of the Deltabox Frame combined with the effects of the linked type monocross suspension achieve good riding comfort, agile handling, and turnability, hardly ever causing bottoming out. As the heir to the YAMAHA R series, YZF-R15s has inherited the series' agile handling performance.

New Sporty Graphics

New Sporty Graphics to provide YZF R15s an edgy and sporty looks.

Unibody Seat


Unibody seat adopted to give more comfort for rider and pillion.

LIquid Cooled Engine


First Indian made model with liquid cooled Engine. Liquid Cooled Engine provide stable performance, reduce vibrations, and offer a high quality ride. The engine is surrounded by a water jacket in which coolant liquid circulates to cool the engine. While this method is widely used in automobiles and large capacity motorcycles, there are very few examples of motorcycles of this class due to increased weight from components such as radiators. YZF-R15s uses a special compact and lightweight aluminium radiator and a body design that utilizes airflow for heat dissipation. This has enabled us to create a lightweight, compact body while retaining its stable performance.


The benefits of using this method include stable performance during long-distance, high-speed riding and hill climbing. A liquid-cooled engine does not need heat-dissipating fins and therefore the engine is able to deliver its best performance without being affected by temperature. Additionally, because the head and cylinder are enclosed in a water jacket, mechanical noise from the engine is reduced dramatically. The newly developed engine delivers agile riding performance, and excellent performance on straight stretches of road as well as on winding roads. YZF-R15s also delivers excellent environmental performance. These traits are a must for an "urban supersport". The ride is unprecedented in terms of both excitement and quality.

YZF R15s - With Unibody Seat


The YZF-R15s with unibody seat , designed to provide more convenience to rider and pillion both. Equipped with 150cc liquid cooled, 4 stroke SOHC, 4 Valve engine, front and rear disc brakes along with a fuel capacity of 12 litres, 5 spoke alloy wheel and sporty graphics.

YAMAHA's Humachine Technology aims to provide a superior riding experience for both rider and pillion. To create this, a Unibody seat has been adopted. This is ergonomically designed to give optimal support to rider and pillion, at all speeds, over longer duration rides as well.
Yamaha R series bikes are equipped with under cowls that are based on the image of a diffuser, to give them the best form for aero-management. These are not cowls for simply enclosing the engine, but forms composed of blade surfaces that actively control airflow. This spirit has been directly inherited by the YZF-R15s.

Yamaha R One Five (R15) – The Number’s


After months of speculation all over the internet in various discussion board/forum, Yamaha has officially announced the much awaited figures of the R15.

With the rumors quoting power of the bike in excess of 20bhp, the official figure stands at 17PS. Reading the response, I believe Yamaha officials were very smart in keeping the figures secret until the last day else the comments like following would have been floating on the various discussion forums for months.

“Just 17PS”
“My XYZ bike makes more power”
“My ABC bike is just behind in power”
After all discussing all about a bike, without even test riding it, is a born right of every internet savy “biker” :-).

Now with the gearing numbers also out, I entered them into my Excel spreadsheet and the numbers I saw were a bit shocking.

Primary Reduction: 3.042
Secondary Reduction: 3.000
Rear Tyre size: 100/80×17

Ratio ->
2.833
1.875
1.364
1.143
0.957
0.84
RPM
1st Gear
2nd Gear
3rd Gear
4th Gear
5th Gear
6th Gear
1000
4.32
6.52
8.97
10.70
12.78
14.56
2000
8.63
13.04
17.93
21.40
25.56
29.12
3000
12.95
19.57
26.90
32.10
38.33
43.67
4000
17.27
26.09
35.86
42.79
51.11
58.23
5000
21.58
32.61
44.83
53.49
63.89
72.79
6000
25.90
39.13
53.79
64.19
76.67
87.35
7000
30.21
45.65
62.76
74.89
89.45
101.90
7500
32.37
48.91
67.24
80.24
95.83
109.18
8000
34.53
52.17
71.72
85.59
102.22
116.46
8500
36.69
55.44
76.20
90.94
108.61
123.74
9000
38.85
58.70
80.69
96.29
115.00
131.02
9500
41.01
61.96
85.17
101.64
121.39
138.30
10000
43.16
65.22
89.65
106.99
127.78
145.58

PS: The above numbers are based on the gearing of the bike. They do not take into account the clutch slip, air drag and other such factors.

Now with the bike making max torque at 7,500rpm (15Nm), the cruising speed can be 109km/hr in top gear. With the max power being made at 8,500rpm (17PS), a speed of 123km/hr should be easily attained. Now these are just numbers, how quickly bike can reach there, will only be known once someone is able to strap a data logging equipment to the bike.

Going by just the numbers, I belive the bike should be able to meet the claims of Yamaha official that this bike will be the fastest amongst all Indian bikes, in straight line.