Alen phenomenon bike! That is all I can say, especially for the price. Ideal for casual players, riding. The bicycle, however, came with instructions and was removed from the Dunhams in Michigan for about $ 200.00.

Pros: Stylish, well, including aluminum and steel building, and the full suspension rod system, there is a comfortable ride. Disc brakes are very nice, too!

Cons: (in stock build only) after long journeys of the pedal assembly hub will be strengthened, very difficult to pedal forward, until you reverse pedal. The rims are too narrow and the high buttons will make the tires turn makes it difficult to drive sideways on concrete runways 45 degree angle or more, The rear suspension system makes it difficult to buy accessories such as a rear tray or basket, The rear derailleur causes the chain to "jump" only at high speed / torque serious conditions (rear derailleur front 7 = = 3)

Total: best bang for your Buck. It is a beautiful bicycle, packing a lot of attention wherever I go.

Description:

The GMC Topkick 21-speed mountain bike has a full suspension, strong aluminum frame, uses a floating beam suspension design, lead to a zoom fork with elastomer / spring technology. The Topkick's propulsion system begins with Microshift push shifters. This control shifters Shimano's tried and true TC 30GS derailleur. The powertrain ends with a strong aluminum wheel set with a V-shaped rim profile and high-flange alloy hubs. Stopping by PROMAX disc brakes at the front and back. These brakes are far superior rim brakes, especially under adverse road conditions. True it's GMC roots, this bike is robust, good-looking, and built for the long haul.

GMC Topkick Mountain Bike specifications

* Frame: 26-inch aluminum full suspension mountain bike frame

* Fork: CH-386 Zoom fork 65mm travel

* Clashes: Type adjustable shock 650 pounds

* Chain: KMC Z 51

* Crankset: Aluminum ISA 335P 28x38x48 L170mm

* Front Derailleur: Falcon MF 31 T

* Switch: Shimano RD-TZ30GS SIS 7SPD

* Gear: Microshift ADII TS-50 index L3/R7

* Brakelevers: 30 GP AP aluminium

* Brakes: LCHI DSK-320 disc brake 160mm

* Wheels: Alloy black 26-inch X1.5

* Tires: Kenda black with yellow tape 700x25c

* Stem: A head TDS63K-8 EXT: 100mm 15D

* Bars: HL MTB-153 W: 600mm R: 30mm

* Sadle: Cycling black padded

* Seatpost: Alloy micro adjust 27.2 x 300mm with quick-release

Product Features:

* 21-speed mountain bike features a full-suspension, strong aluminum frame

* Floating beam suspension design is mated to a Zoom suspension fork with elastomer/spring technology

* Microshift push shifters and Shimano TZ-30GS derailleur

* Strong aluminum wheelset featuring V-shape rim profile and high-flange alloy hubs

* Front and rear Promax disk brakes work great, even in adverse conditions