MTB XC hardtail

ThomasWoh

Overview
As one of the most popular mountain bikes ever, the iconic Blast explodes this year with some fine-touch improvements and an overall upgrade in components. Using Superplastic formed tubing and smooth welds we create a frame that's super responsive, light and incrediblystrong. This year's Blast comes with a beefier RockShox Tora fork with lockout, Shimano cranks and hydraulic disc brakes, WTB Valcon saddle, and 9-speed cassette for maximum terrain adaptability. This, good friends, is your ticket to good times.


technology
SLOPING TOP TUBE
Kona recognized the advantages of sloping top tube frame design right from the original models we made in 1988, designed by inaugural MTB Hall of Fame legend Joe Murray. As a company, we've stayed true to this philosophy, going so far as to pioneer the design in road bikes before the benefits were understood. Today, you'll find sloping top tubes in most high-end road race bicycles. We've since stayed true to all the many positives this design brings to overall bike performance and comfort.
First, this design allows the top tube to be lower, providing more room for correct positioning and free body movement, enabling more standover clearance, which is particularly useful on dual suspension bikes that have higher bottom brackets. Riders have a more secure riding position, which is especially beneficial when riding downhill sections.Also, the top tube is longer and more compliant. As the top and down tube become more parallel, there's less triangulation, resulting in more compliancy. So not only is the frame stronger and more responsive, but it absorbs more shock than frames with horizontal top tubes.
COMPACT REAR TRIANGLE
Short chain stays and seat stays provide a perfect balance of stability and power transfer when out of the saddle and pedaling hard. Shorter seat stays also have less deflection during braking and accelerate quicker than longer stays. The shorter rear triangle also helps the bike to negotiate tight twisting sections of trail.SUPERPLASTIC FORMED TUBING
Superplastic Forming (SPF) uses high temperatures to shape tubes, when the tube structure is in its most 'plastic' and formable state. SPF allows for better tube shapes that cannot be produced using traditional forming techniques. Whereas shape designs can be applied to 20% - 30% of the tube using hydroforming, SPF allows up to 90%. The result: more optimized shapes and lesser weight. SPF tubes are the perfect alternative to the infinitely more expensive carbon fiber - comparable in weight and performance, without the accompanying disadvantages. SPF tubes are also recyclable.
SPF Tubing is featured on the following Kona 2011 models: Blast, Cinder Cone, Caldera, Kula Lisa, Dew FS, Dr. Dew, Dew Deluxe, and Dr. Good.INTERNAL HEADSET
By having the headset bearing located inside the headtube (what's sometimes called zero stack), rather than the top and bottom, we are able to achieve a wide array of advantages when it comes to front end stiffness and overall riding performance. With an internal headset, the head tube is able to take the stress directly, resulting in less play and less wear, with strong ride characteristics, and better bearing performance.
An internal headset also reduces stack height, enabling the height of the stem and bars to be more adjustable, the bike has more setup options, resulting in the best fit possible.KONA SIZING AND FIT
Sizing and fit have always been one of the main strengths of the Kona range, with more stock sizes available than any other bike company. With our range of bicycles expanding significantly over the last couple of years, we felt it was time to overhaul our size scale.
We started with the overwhelming request for longer top tubes on our XC mountain bikes. The average increase is ½-inch (15-20mm), which we coupled with shorter stems and slightly shorter headset stack heights. The steps between sizes were evened out to ½-inch or 1-inch increments, and there are still up to 7 sizes: from 14-inch to 22-inch on many models.
In the asphalt range, top tube lengths were marginally lengthened, with the size gaps revised to even 15 to 20mm steps. There are still up to 6 sizes" from 46cm to 61cm on most models.
When it's called for, seat posts are either offset or straight to maximize the reach and power output of the rider. More importantly, the overall sizing on mountain bikes and road bikes allow Kona dealers and riders to determine their fit more easily from model to model and category to category.
The net result is better fit on the entire range, with a simplified system that allows easy fine-tuning and a perfect marriage of bike and rider throughout our entire 2011 range.LIFETIME WARRANTY
Kona warrants to the original owner that the frame of this new Kona bicycle purchased from an authorized Kona dealer shall be free of defective materials or workmanship for the lifetime of ownership by the original owner. Carbon frames have a 5 year warranty. During this warranty period, Kona shall repair or replace, at its sole option, the bicycle frame if Kona determines the frame is defective and subject to this limited warranty. The original owner shall pay all labor and shipping charges connected with the repair or replacement of the bicycle frame. Please see the Kona Owners manual provided with your bicycle for additional information.
7005铝

铝是目前国内自行车行业中最广泛使用的管道材料。铝是经常夹杂着其他元素的数量，创造铝合金具有不同的特点骑主机，同时提高机械性能。我们管大部分是对接和/或形成，这意味着该管壁厚度可以增加或减少，以及形状，使我们能够微调一个特定的框架的行驶特性上的应用而定。科纳对接广泛使用在我们山区，道路沥青和7005铝合金自行车的整个范围。一个坚韧，耐用，价格适中，重量轻，可靠的合金，7005提供了强大的性能，为成千上万的游戏机持续。这是迄今为止，远离，最终在市场上铝管材今天。

坡地上管

科纳公认的坡地上管架从我们在1988年，由首届山地车名人堂的传奇人物乔美利原机型设计的设计权的优势。作为一家公司，我们除了坚守这一理念，竟然以先锋设计，在公路自行车的好处之前，理解。今天，你会发现倾斜的最高端自行车公路赛上管。我们已经因为除了坚守这一切带来的整体设计，性能和舒适许多自行车阳性。

首先，这种设计使上管要低一些，提供更多的正确定位和自由体运动让更多的跨距关，这是特别对双悬浮自行车，具有较高的底部支架有用室。车手有一个更安全的骑乘姿势，这是特别有益的骑下坡时部分。

此外，上管较长，更符合。随着越来越平行的顶部和下管，有较少的三角测量，导致更多的符合性。所以，不仅是框架更强大和更积极响应，但它吸收更多的横向顶管比框架的冲击。
紧后三角

短链提供住宿和座位保持一个稳定和政权交接时的完美平衡在马鞍出来，脚踏努力。较短的座椅也停留在刹车和加速变形少比长时间停留更快。较短的后三角也有利于谈判的自行车步道节扭紧。

超塑成形管材

超塑成形（SPF）的使用高的温度，形状管，当管结构，其最'塑料'和成型的状态。 SPF值可以更好地管，不能用传统的成型工艺生产的形状。而形状设计可应用到20％ - 30％使用的管件液压成形，防晒可高达90％。其结果是：更优化的形状和重量较轻。SPF级管的最佳替代品更昂贵的碳纤维无限 - 在重量和性能比较没有附带劣势。 SPF级管也可回收利用。

油管为特色的SPF以下科纳2011款：高炉，煤渣锥，火山口，库拉丽莎，露点外勤人员，博士露，露豪华，博士和好。

内部耳机

通过让耳机轴承内headtube位于（这是什么有时也被称为零栈），而不是在顶部和底部，我们能够实现广泛的优势，当涉及到前端的刚度和整体平顺性。与内部耳机，头管可以采取直接的压力，从而减少磨损少打造成具有较强的乘坐特点，更好的承载性能。

耳机也减少了内部堆叠高度，使茎的高度和酒吧更可调，自行车有更多的设置选项，在最合适的可能产生的。

科纳尺寸和散客

尺寸和合适的一直是科纳范围内的主要优势与更多的股票规模比其他任何可用的自行车公司之一。随着一系列扩大我们的自行车在过去几年显着，我们觉得是时候我们的大小规模的大修。

我们开始与在我们的越野山地自行车不再顶管压倒性的要求。平均加幅为半英寸（15 - 20mm的），我们用较短的茎和稍短耳机堆叠高度耦合。之间体积步骤扯平到半英寸或1英寸递增，目前仍有多达7大小：从14英寸到22英寸的多种型号。

在沥青范围，顶管长度分别轻微延长，差距的大小修改，甚至15至20毫米的步骤。还有多达6种“从46厘米到六一厘米在大多数模型。

当它的要求，座椅职位或者对冲或直接，最大限度的车手范围和输出功率。更重要的是，山地自行车和公路自行车的整体尺寸允许科纳经销商和骑手，以确定其适合从模型到模型更容易和类别为分类。

最终结果是对整个范围内更好地适应，具有简化系统，可以方便地进行微调和自行车和骑手我们整个2011系列的完美结合。

终身保修

科纳权证的原主人，这一新科纳从授权经销商购买的自行车车架科纳应当有缺陷的材料或所有权的原主人一生做工自由。碳纤维车架有5年保修。在此保修期内，修理或更换科纳应在其唯一的选择，如果科纳的自行车车架结构是有缺陷的决定，并受本有限保证。原来的主人应支付所有劳工和运输与修理或更换自行车车架连接费用。科纳请参阅用户手册与您的自行车提供更多信息。

ThomasWoh

名字: blast