Seth's Bike Hacks
Publicado el 10 jun. 2016
This is the bike: http://amzn.to/1ZFg5bw
This is the next video: https://youtu.be/9Hg7vjmlCuA
It's hard for me to complain about the Mongoose Dolomite, since it's a sub $200 fat bike. No, it doesn’t shift nicely, and yes, it has one of those terrible seat clamps with the bolts on the sides. It’s precisely compromises like these that make super cheap bikes possible. So with that understanding, I'll give an overview of this bike's strong and weak points.
First of all the paint job is impressive. Even the rims have a nice red powder coat on them, which does a pretty good job of hiding this huge weld. The saddle is also quite comfortable.
The rear derailleur is from Shimano's Tourney group set, which is suspiciously absent from their website. Although I see it available for $6 on the internet, I think it might be the most expensive part on this entire drivetrain.
Speaking of drivetrains, I've gotta give credit to Mongoose for setting this up with a 1x. This makes the bike much cleaner and more mechanically sound. With that said, I think they should have chosen a smaller chainring for the front. At 47 pounds, this thing is pretty hard to pedal on flat, let alone on sand or up hill. I will say though that it's lighter than my last bike by a full pound—of course on that bike I packed the components with sand and pumped the tires full of water.
The disc brakes suck terribly, but surprisingly they are totally adjustable like normal ones. Most department store bikes are built in some proprietary way that makes them difficult or impossible to service. This bike breaks that trend to some extent. That makes me wonder if a better set of pads would improve the stopping power. For now, all I need to do is stop pedaling and the bike comes to standstill pretty fast.
I was especially happy to see a threadless headset. Compared to a threaded headset and quill stem, this feels incredibly solid, and dare I say—safe. I expect this headset to hold up much better than my last one, and I also expect the alignment to stay put.
I have ridden quite a few fat tire bikes, and they were generally heavy and sluggish compared to their skinny counterparts. Still, I was always pleasantly surprised at how well they handled for their size. Not this bike. Sure, if you pump the tires to 20PSI it rolls and steers well, but it’s then useless on sand or chattery terrain. Reduce the pressure to 10 PSI, like a real fat bike, and its off-road performance does improve. Unfortunately, this makes the bike extremely difficult to control, as the steering pulls whichever way you’re turning. I think this is due to the cheap tires, which are pretty thick and shaped oddly. I also think wider bars and a shorter stem would make this bike easier to manage.
If you have this bike and want to give it an upgrade, I might recommend that shorter stem paired with cheap set of 760mm bars.
Even after these shortcomings, I firmly believe this Mongoose Dolomite is a marvel of engineering. Like I said, everything on this is a compromise, designed to keep it below $200. As a society we asked for a cheap fat bike, and here it is. It may seem like certain things could have been made better for the same price though. For instance, would a smaller chainring in the front have changed the price? Well, maybe. You see these bikes benefit from economies of scale, or using parts that can be produced in mass quantity. So, it could have been that this very popular crankset/chainring combination was actually the cheapest route. This scenario is very likely, and is probably the case for many other parts on this bike. So, we don’t really have the right to nitpick the gear ratio.
So now for the real question; why did I buy this bike? Why not a nice fat bike? Well, I have some plans which I wouldn’t have the heart to carry out on a bike like that. If you’ve been following my videos, you could probably guess that the Dolomite is gonna have a rough week.
Stay tuned, because in the next video, things might get a little salty.
Thanks for riding with me today, and I'll see you next time.