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GMC Topkick Dual-Suspension Mountain BikeReviewspros: well built, disk brakes cons: heavy, rear suspension is so stiff that its useless, disk brakes will require some tuning out of the box overall its a good bike for the money. for those looking to do some serious long distance riding i'd recommend looking elsewhere for a lighter bike. I recently purchased this bike after doing much research and reading the other reviews. The bike arrived in a timely manner. BUT, the rear derailleur was bent catywhampous. And there were two scratches on the bike, but I can live with 'em. I called Amazon and they resolved the matter with sending me a whole bike in which to take the part and replace with mine. They cover the shipping both ways and I should be getting it quicker than the original purchase. I am of course impressed. Though I will be having it put together by a bike guy. I did put the first one together in no time at all until it came time to adjust the deraileur, that was 4 hours. Luckily, I have other bikes at the house, and yes the the derailleur was bent. Overall, for the price and time it is worth the price. I would have had to spend twice the price locally, I'll live with older but quality parts. The bike is mainly for transportation and exercise. This could have been avoided with better packaging, wouldn't it be cheaper than sending another bike? My only question is...did they send me a previously returned bike? THX This is good bike for the price. It is a little more heavy than other more expensive mountain bikes. Easy to assemble. Gears will need adjustment. We bought this bike for our son for Christmas, and on his second ride the gears stopped functioning properly. So, we returned it in exchange for another hoping it was a fluke, but the replacement bike did the exact same thing. We ended up sending it back as well, and just getting a refund. Amazon is great about returns though! I was looking for a bike to ride while on my beach weekends and vacations. I like everything about the bike except for two items: 1)the disc brakes need much adjustment to get them to not drag on the rotor, especially the front. 2)the derailler on the pedal sprocket needs A LOT of adjustment to shift up and down properly. I considered upgrading to an expensive pro model derailler but finally got this one to work. Average Rating:![]() |
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The GMC Topkick features a strong aluminum frame utilizing a floating beam suspensiondesign, mated to a Zoom suspension fork with elastomer/spring technology. The Topkick's drivetrain starts with Microshift push shifters controlling Shimano's tried and true TZ-30GS derailleur, and finishes up with a strong aluminum wheelset featuring a V-shape rim profile and high flange alloy hubs... |
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GMC Yukon Mountain BikeReviewsThese are great bikes for entry level or people who don't plan professional biking career. I got it well packaged, easy to assemble, nothing really to do except mounting the front wheel and putting the breaks in place afterwards, then mounting the pedals. I ride it along with my son, on a back mounted children seat I got from Ross. shifts are easy and smooth, it needs calibration, as any other shifts. they are not the lightest bikes, but it's strong, I'm loading over 300 pounds on them with my son. The seat is reasonable, not very soft, and it's good that it's not that small tiny seat because for big people that one is a pain in the... but you know, it takes few rides for the ... to get used to those seats. Tires are good, I may replace them with less mounty ones, since i drive it on roads and paved tracks, not really down hill wild rides. The bike frame was welded together wrong! The front wheel could not be put on the bike because the arms were not aligned. How can they make a bike so obviously defective and try to sell it? IF the bike had been correctly manufactured, it would have been the perfect bike for my 13 year old son. The quality of the bike itself was OK, a few things probably should have been a bit more quality, like the pedals, they were plastic, not good for $169. I'd say if you are a serious biker, this is not the bike for you. If you ride a bike for lesiure or family time, it would be fine. Buying through Amazon was great, I was able to return the bike, free shipping, and was credited back the $169. I love buying from Amazon, they make it so easy for you, if your purchase doesn't work out. So don't tear the box up until you know the bike is a keeper! Like other reviewers have pointed out the brakes on this thing are flimsy and its only a matter of time before the fail to work properly. Shipping was free and it looked that way when I received the bike. Shipping was so bad my rear rim was so bent it would not spin. Also the front forks/shock system was so badly put together I had to take it to the local bike shop and have them redo it. When riding the gears would automatically change. I'm sorry to say I do not recoomend this bike. Take your money and invest it into a better bike. I wish I had :( P.S One good thing about this bike is it has a sturdy aluminum frame. Thats about it. Amazon did their job quite well, it is GMC who did not perform so great. The bike arrived well ahead of schedule, however, the bike is not very well built. The frame is solid, the brakes and gears are a bit cheap, and they gave me a different seat than what was pictured(it is a big old granny seat). If you were to put new brakes and maybe a new gear set on this bike it would be about a 400 dollar bike. So it is overall a project bike for me, otherwise a great starter bike for someone who does not ride often. Worst packaging ever. There isn't any type of protection between components. The frame and tires are tied up each other with plastic ties, that's all. I would assume that they would at least put some foam protection between the tires and frame, and around the frame. There was not one single page of instruction about how to assemble it. You don't have to be a genius nor is it too hard to figure out but I wasn't sure about few small things and it would be great if I had a choice to look them up. The worst part is that the bike requires assembly and there was not one single disposable tool to do the job. I mean come on, even the $25 coffee maker comes with some type of tool to assemble it, they just assume you should have the tools. Forget having the tools, there is nothing to tell you what type and size of tool you need, so you can't go and get anything from your local home depot, you will have to try and find out what fits. The first thing I noticed was the one of the shifters was broken. It's made of really cheap plastic so no wonder it didn't make it the infamous UPS handling. But let's not blame UPS, if it was packaged properly, nothing would have happened. Here is the funny part; the handle bars were assembled upside down. I attached it to the frame but it looked funny then I turned it the other way around to find out, it was assembled wrong. I have no comment, you be the judge of that. Overall, the bike looks good, with fancy painting and labels, although few labels were not attached completely. Unfortunately I cannot say anything about the performance since couldn't make it to road. I couldn't try but the seat doesn't seem comfortable. I should say it seems "OK" bike for people who intend to use it for joy rides once a week. However, I have to inform you that it is made of cheap materials, but then, you get what you pay for. I read bad reviews about Kent who seems to be the manufacturer and/or distributor of this bike. I agree with them and I chose not to buy anything from them again. This was my first purchase for a bike and it went surprisingly disappointing. It's very disappointing when you wait for something impatiently and then find out you have to return it, search again for new one, wait another week or so, etc... Maybe buying a bike online wasn't such a great idea but I thank you Amazon for making returns painless for us. Average Rating:![]() |
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The GMC Yukon features a strong aluminum frame utilizing a floating beam suspension design, mated to a Zoom suspension fork with elastomer/spring technology. The Yukons drivetrain starts with Microshift twist shifters controlling Shimano's tried and true TZ-30GS derailleur, and finishes up with a strong aluminum wheelset featuring a V-shape rim profile and high flange alloy hubs... |
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Men's GMC 26" Yukon Mountain BikeReviewsThis bike I have owned for a couple months...it has been on 3 mountain bike trails at around 10 miles each, all rough; and many miles on city streets, city trails, and country roads... I bought this bike because I was interested in mountain biking and did not want to buy a total piece o' dookie to ride on from Wal-Mart or something (aside from being an anti-Wal-Mart person) and got this... Turns out, I really enjoy mountain biking. The bike held up well on streets, country roads and EASY-PEESY trails...if you are jumping roots, logs, going through mudd (especially mud), creek beds, water, etc, this is not the bike for you...The rear derailluers slip easy and the bike does not change gears very well. At this time I can only use gears: 1, 2, 4, 6, 8, 9, 11, and 13 out of 21. The entire 3rd gear set does not work because the front derailluer is crap. I spent 2 hours working on it the other day and had a bike guy look at it, it's fubar. I was not aware of this until riding through town with a "speedy" biker. The guy has a Trek street bike, so we got up to about 20 mph quickly. When I tried to go into gear 15 through 21, SNAP! and I almost fell off because the bike locked up from being able to change those gears... The seat is very uncomfortable. The bike is fairly light, which is good for trails when you have to carry in and out your lunch and water... The front shocks work well... I finally snapped and decided to get a different bike and bought a Trek yesterday...looking forward to it getting here. Took this on a trail today, other than the caked on mud, slipping gears (from all the mud) and still missing several gears, it does what it needs to do. Happy Trailing! Micro Wave Oven, Mens 26" Mountain Bike. These were gifts sent to my daughter-in-law and my grandson. The mountain bike was not even setup and if it was delivered as not being setup, you should have added an extra charge for the bike to be setup at your location. Thanks [...] Average Rating:![]() |
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The GMC Yukon features a strong aluminum frame utilizinga floating beam suspension design, mated to a Zoom suspension fork with elastomer/spring technology. The Yukons drivetrain starts with Microshift twist shifters controlling Shimano's tried and true TZ-30GS derailleur, and finishes up with a strong aluminum wheelset featuring a V-shape rim profile and high flange alloy hubs... |







