slider Lovers of Bike's Technology

First Mountain bike

The name "mountain bike" first appeared in print in 1966 as "mountain bicycle"

Cycling with Children

The child may pedal or freewheel independently of the towing adult.

History of Mountain Bike

The history of the mountain bike includes contributions from cyclo-cross in Europe and the Roughstuff Fellowship in the UK.

Bike in Town/City

Child bike trailers allow you to safely take your small children along on family bike rides.

Specialized Bike

Specialized adalah salah satu merek sepeda yang paling terkenal dan disegani di dunia.

Thursday, 9 February 2017

Cycling Tour in Indonesian Village by Bali Tour Company

Bali Cycling Tour is one of the Bali Activities Tour by offer amazing selection Bali Bike Ride Trip package for downhill cycling bike from Kintamani Volcano, Balinese Local Village and Jatiluwih Rice Paddy. Bali Cycling Tour offer a truly unique and authentic bicycle trip by combining sightseeing, coffee plantation tour and cultural insight with cycling activities through the unspoiled breathtaking countryside.

The Cycling tour will take you far away from the regular tourist itinerary and "off the beaten track" deep into rural Bali where you will be able to witness firsthand the daily life of the Balinese people, their local customs and rituals as well as their age-old traditions.

We Bali Tour Company would like to give a interesting experience, education, exercise and fun of Cycling Trip. Our goal is to help you experience Bali’s best kept secrets - the excitement, exploration, breathtaking countryside and genuinely warm-hearted local villagers up close and personal. We believe that this begins with safety – using only the finest equipment, consistently maintained bicycles, and tours led by professional, English speaking guides who are trained in basic first aid, mature, responsible and who know how to show you the time of your life rain or shine!


Bali Cycling Tour is designed for travelers who seek to godeep into Bali's Countryside and offer wide range selection of cycling tracks are available for you. Not only rural villages and rice paddies, we offer you more, off-road paths, secret back roads, dense plantations and bamboo forest are just a few of them.

Our routes are also flexible and can accommodate any level of experiences. From the easiest to the most challenging are available depend on your requests and preferences.

During the Bali Bike Ride Tour you can stop whenever you choose to take photos and visit the local people. You will be able to find out detail about village life include rice and vegetable farming, ceremonies and family life or watch wood carver at work and visit traditional Balinese compound to look its daily routine.

The Indonesian dishes lunch will be serve in modern Balinese Family environment. After lunch we will take you back to your hotel.

Friday, 25 March 2016

GIANT's 27.5 Technology

Superior performance without compromise. These are the reasons to ride Giant 27.5.

1. Lighter weight


Significantly lower bike and rotational wheel weight helps you climb faster with less effort.

Overall Bike Weight

Compare the weights of identically equipped bikes with different wheel sizes and you'll see substantial weight differences. As expected, the 26-inch-wheel bike is somewhat lighter than the 27.5, and substantially lighter than the 29 (up to two pounds of overall bike weight savings from 29 to 27.5). Every gram saved helps you ride faster.

Wheel/Tire Weight

The overall weight of a 27.5 wheel set (wheel, tire and inner tube) is only 5% greater than that of an identically built 26-inch wheel set. Compare this to the 12% increase of a 29-inch wheel set and you can see how a seemingly small increase in diameter results in substantial weight gain—and poorer performance when climbing or accelerating.

Weight Comparison
Static wheel weight
Lighter wheels/tires result in a quicker acceleration and lighter overall bike weight - a win-win combination.

2. More efficient


Snappier acceleration and a reduced angle of attack for a smoother, more agile ride.

Rollover

Increased wheel diameter decreases the angle of attack (the angle in which a round object intersects a square object). This is a good thing. A 29-inch wheel rolls over a 6-centimeter square-edge obstacle 14% more efficiently than a 26-inch wheel does. In comparison, a 27.5-inch wheel rolls over the same obstacle 9.8% more efficiently than a 26-inch wheel does.

Another way to analyze angle of attack is the degree of impact—where 26-inch equals X degree, 27.5 equals X-4 degrees and 29 equals X-6 degrees. Again, a shallower angle is better—so 29-inch takes the win, with 27.5 exhibiting nearly the same performance but without the weight penalty.

Acceleration

Arguably the most important benefit of 27.5 over 29 is quicker acceleration. This is the "snap" that a rider feels when they push hard on the pedals. It is affected not just by overall static weight but also where the weight is distributed throughout the wheel. The farther the weight is from the center of the hub, the slower the acceleration. So a similarly constructed 1000-gram 29-inch wheel is slower to accelerate than a 1000-gram 26-inch wheel—because the larger diameter rim and longer spokes place weight farther from the hub. The key to snappy acceleration is minimizing the weight of the outermost components (rim, nipples, spokes, tire, tube). As you can see, a 27.5-inch wheel is only 1.5% slower to accelerate than a similarly constructed 26-inch wheel, but a 29-inch wheel is 3.6% slower than a similarly constructed 26-inch wheel.




3. Better Control


A larger tire contact patch, increased stiffness, and optimized frame geometry improve traction, braking and handling.

Traction

The larger the diameter of a wheel, the greater the contact patch of the tire. A larger contact patch results in better traction, which leads to improved acceleration, deceleration and cornering. As you can see, a 27.5-inch wheel has a similar contact patch to the 29.


Frame Stiffness

Lateral (side-to-side) frame stiffness can be affected by wheel size. To accommodate larger wheels, frame dimensions must be elongated. Therefore, a size medium 29-inch wheel frame has more lateral flex (bottom bracket and headtube) than a size medium 27.5 or 26-inch wheel frameset. Additional flex compromises handling under heavy pedaling or sharp cornering.


Frame Geometry

The larger the wheel, the more difficult it is to optimize geometry, especially on smaller frames. As the frame size decreases, headtube heights become higher (in relation to saddle height). On 26 or 27.5-inch frames, it's less of a problem, but geometry limitations can affect smaller 29-inch-wheel frames.

Thursday, 24 March 2016

GIANT's FlexPoint : SUSPENSION PERFORMANCE MADE SIMPLE


SUSPENSION PERFORMANCE MADE SIMPLE

Using the flexing elements of the rear chainstay and seatstay, FlexPoint Suspension eliminates complex pivots and linkages to provide an effective, lightweight and durable suspension system that’s easy to maintain.




Key advantages include:

EFFECTIVE PERFORMANCE

The proven “single-pivot” suspension design offers trail riders increased control for more confident off-road riding.

LIGHT AND DURABLE

The flexing action of the chainstay/seatstay junction creates a simple, lightweight and durable system that provides 4.7 inches/120mm of rear wheel travel.

EASY MAINTENANCE

FlexPoint offers similar benefits as multi-link suspension systems but without the added costs or the need for frequent maintenance.


How it works
  1. No mechanical rear pivot point: The flexing action of the chainstay/ seatstay junction creates 4.7inches/120mm of rear wheel travel.
  2. Proven "single pivot" suspension performance: FlexPoint’s single pivot suspension design delivers effective performance for light-to-medium trail riding capabilities.
  3. ALUXX Aluminum swingarm: Giant proprietary swingarm design provides the flexing elements of FlexPoint suspension for durable and effective performance.

CUBE Bike's Efficient Ride Control

CUBE Bike's Efficient Ride Control

Our Efficient Ride Control concept is now also applied to our newly developed 27.5 frames like the AMS 130 and AMS 150. With Efficient Ride Control particular attention has been given to delivering the identical optimum riding experience to every rider, irrespective of body size. We've designed the linkage geometry on a model-by-model basis so that all frame sizes have the same travel and spring rate curves. In addition, the kinematics have been optimized specifically in relation to travel in respect of sensitivity, drive and no bobbing. For this it was necessary to specially position all rear pivot points. Whether the rider is large or small, with any of these models he will always have the optimum ride experience.

GIANT's The Evolution of Control and Handling

As the first manufacturer to bring the tapered headtube to market—with the 2006 Glory mountain bike—Giant knows a thing or two about inventing solutions for improved steering precision. The original OverDrive technology resulted in groundbreaking stiffness-to-weight ratios, and the newer OverDrive 2 system on high-performance road and mountain bikes offers even further advantages.


OVERDRIVE 2

FEATURES: Giant’s most advanced fork steerer-tube technology. Oversized headset bearings (1 1/4-inch top and 1 1/2-inch bottom bearings) and a tapered steerer tube combine for unprecedented steering performance with no additional weight.

BENEFIT: Compared to the already stiff OverDrive system, OverDrive 2 provides up to 30 percent more torsional steering stiffness. This translates into industry-leading steering precision. Whether you’re sprinting for the finish or cornering hard in the most demanding conditions, you can ride with more power and confidence.

Please see on picture :
  1.     1 1/4-inch top bearing
  2.     1 ½-inch bottom bearing
  3.     1 1/4 –inch stem
  4.     Tapered steerer-tube
  5.     Custom OverDrive 2 expansion wedge




OVERDRIVE

FEATURES: Giant’s original oversized fork steerer-tube technology. Designed to provide solid front-end steering performance, the system’s oversized headset bearings and tapered steerer tube provide optimal steering stiffness. Road models feature 1 1/8-inch top and 1 1/4-inch bottom bearings, while the mountain version features 1 1/8-inch top and 1 1/2-inch bottom bearings.

BENEFIT: OverDrive provides up to 15 percent more torsional steering stiffness than straight steerer-tube designs. This translates into much more accurate steering input from a rider’s hands, through the handlebar and stem, and down to the front wheel. Whether hammering uphill or carving through a corner, OverDrive transmits input directly to the front wheel for more precise handling.

Wednesday, 23 March 2016

History and Designs of Mountain Bikes

History of Mountain Bike

The history of the mountain bike includes contributions from cyclo-cross in Europe and the Roughstuff Fellowship  in the UK. The name "mountain bike" first appeared in print in 1966 as "mountain bicycle"[citation needed]. The original mountain bikes were modified heavy cruiser bicycles used for freewheeling down mountain trails. The sport became popular in the 1970s in Northern California, USA with riders using older single speed balloon tire bicycles to ride down rugged hillsides.  Joe Breeze, a bicycle frame builder, used this idea and developed what is considered the first mountain bike. The 2006 documentary film, Klunkerz: A Film About Mountain Bikes, looks at this period of off-road cycling in detail. However, it was not until the late 1970s and early 1980s that road bicycle companies started to manufacture mountain bicycles using high-tech lightweight materials, such as M4 aluminium. The first mass production mountain bike was the Specialized Stumpjumper, first produced in 1981. Throughout the 1990s and 2000s, mountain biking moved from a little-known sport to a mainstream activity complete with an international racing circuit and a world championship.


Designs

Mountain bikes can be classified into four categories based on suspension:
  • Rigid: A frame with a rigid fork and fixed rear, no suspension.
  • Hard tail: A frame with a front suspension fork and no rear suspension.
  • Soft tail: A frame with small amount of rear suspension, activated by flex of the frame instead of pivots.
  • Dual or full suspension: A front suspension fork and rear suspension with a rear shock and linkage that allow the rear wheel to move on pivots.