GMC Topkick Dual Suspension Mountain Bike
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- 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
- Micro shift 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
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The GMC Topkick 21-Speed Mountain Bike features a full-suspension, strong aluminum frame that utilizes a floating beam suspension design that is mated to a Zoom suspension fork with elastomer/spring technology. The Topkick's drivetrain starts with Microshift push shifters. These shifters control Shimano's tried and true TZ-30GS derailleur. The drivetrain finishes up with a strong aluminum wheelset featuring V-shape rim profile and high-flange alloy hubs. Stopping is handled by Promax disk brakes on the front and rear. These brakes are vastly superior to rim brakes, especially under adverse road conditions. True to it's GMC roots, this bicycle is rugged, good looking, and built for the long haul.
Color: Matte Black/Blue
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The BAD thing I would like to inform about is the rear tire was flat, and found the tube to be punctured. I capitalize BAD because this was the case for BOTH BIKES. Each bike in their own box and packaging. What are the odds that BOTH rear tire tubes are punctured? Maybe the manufacturer has a disgruntled employee on the assembly line? Or their quality assurance program needs to be reevaluated immediately. None the less I hope the manufacturer learns from this so they can prevent further issues.
Besides that, great looking bikes. Can't wait to try them out as soon as I go get a couple of new tunes and install them. I am really glad that I decided to sneak in an assembly before Christmas otherwise my grandkids would have enjoyed only looking at the bikes on Christmas day. I have no doubt that the bikes will perform above expectations but will pass along any details should things arise.
So if you're one of those types that love a long distance, bike ride (or touring) this bike is for you, just make pretty sure that you got a large hike bag of replacement parts (Water and trail mix is VITAL!!) so you don't end up stuck in the middle of absolute nowhere. However, if you're planning to go on a cross country ride with this model, install reinforced shocks, slightly large disc brakes, off road tires with teflon strips (for more thorn resistance) if necessary install a dual crown fork for unforgiving terrains and utmost importance, GOOD BIKE LOCK!! NOT THE 1/2 @$$'D ONES AT WALMART!! For extra security and anti-theft procedure. Ride like you mean it, PEACE!!
First off, assembly of this bike was very simple. Please note, that I don't have much experience assembling, or even knowing much about bikes, but a few videos of how to assemble/tune it, or even $50 dollars at a bike shop is all you really need. I've rode to work on this during the hot summer days, about 2 miles, and maneuvers great on those cold Montana winters where I also usually bike to school, which is only about 1 mile. Disc brakes are a good change when it is wet out as it still provides a clean and easy brake, not to say that v-brakes don't do their job, but on a steep downhill, I would much rather have disc brakes.
I have taken this bike up and down hiking trails, but mostly run it on the street. I replaced the stock seat, no matter what kind you buy, they are all crap, don't deny it. After doing that, riding through potholes in the city are much better, granted I don't sink my tire in it. Also, dropping off those 1 foot square curbs I have in my city are surprisingly smooth. Rocky trails are also a fairly smooth ride, but you will feel it if you are sitting on your seat the entire time and the path has many dips in it. To be expected, though.
My friend's always gave a slight chuckle when I mentioned a GMC bike, and let's face it, they are not known for building their bikes as say, Specialized or Schwinn. Considering that though, this bike is extremely well put together and runs fine. Also, this bike is heavy, as it says, about 45lbs heavy. Compared to other mountain bikes, which are maybe half this weight, you will feel it until you are used to it. However, it's nice to know if you are hit by a car, it'll show. Heaven forbid that happens though.
The only problems I have had with this bike are some fairly cheap parts. The front and back reflectors are made of very brittle plastic and will easily snap off, even while assembling (mine did). You can buy some to replace those though. The bike seat is a pile, but aren't they all. Next, the handlebar grips leaves something to desire. I would also recommend getting something different.
Overall, I am happy with this bike, and with the money you save from the low price of it, you can buy all the accessories (seats, reflectors, grips AND HELMET) will still keep you under compared to the other bikes. Keep it maintained, whether by yourself, or by a professional, will keep it going smoothly.
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I did some research for a decent mountain bike around $300 and this bike came up.Read more