The GMC topkick mountains has a 21 speed gear that provides enough flexibility to bike up steep hills as well as flat paved roads. The bikes also sport a dual suspension system that provides extra comfort isolating the biker from rough bumpy terrain.

The material from which mountain bikes chassis is made is an important consideration when purchasing such bikes. Since the bikes will be used in tough terrain the chassis should be strong enough to sustain the abuse of such roads. On the other hand the chassis should be light enough so to not burden the biker with more resistance as the road already provides. The material of choice is either processed aluminum or some sort of synthetic carbon fiber. The GMC topkick mountains uses the former its chassis is made of strong yet light weight aluminum.

The other important consideration when purchasing a pair of mountain bike is the rim structure. The wheels take a lot of abuse when riding through rough off road terrain. There are many materials and shapes used in different wheels all with the goal to provide strong light weight rims. The GMC topkick mountains uses V shaped strong rim made of aluminum for extra light weight strength.

Being able to brake at emergencies is important. When riding through rough terrain and steep hills you might find yourself in situation where you must brake fast to prevent a collision. Braking is also needed in order to slow down the bike when going through especially steep downgrades. The GMC topkick mountains uses a disk brakes system on both the front and rear wheels. Disk brakes are usually found in high performance sports cars while bikes usually use rim based brakes. Disk brakes provide much better performance than rim brakes and are superior under averse road conditions.

Looks is not something to neglect either. The GMC topkick mountains does not compromise looks for performance. The bike provides a rugged aggressive look that does not leave a place for confusion about the bike high performance and toughness.

So is the GMC topkick mountains the right mountain bike for you? The first question to ask is are you going to use the mountain bikes for they intended purpose of riding through off road rough terrain or not. Many people buy mountain bikes just because they like the look and feel of them. If you are one of those people that you should check the bikes you are buying for looks and comfort and not for performance since you would not used its capabilities. For example the quality of the shock observers is not important since you would only use them on paved roads. On the other hand if you plan to use the bikes on unforgiving off road terrain that you should check its performance in details.

And lastly price is an important factor. High performance mountain bikes like the GMC topkick mountains are not cheap. Make sure that you spend your money on features that you would actually use and appreciate.