Schwinn Mountain Bike

“I am looking to purchase a bicycle that needs to hold up under moderate commuting and light trail conditions.”
>> Make sure your choice has mounts for a rack and fenders.
“I am looking to spend no more than $300-$400.”
>> That price range will put you in an entry level bike at your LBS. There won’t be a lot of choices in that range, but any less and you’ll need to go with a used bike. There’s not much wiggle room at this range, so don’t expect a sweet discount or freebies. And don’t do the xmart bike thing.
“…how do I evaluate the quality of parts?”
>> Simple answer…ask the staff where the parts rank. Typically, component mfrs offer their products in different levels of quality at different price points.
“…what exactly makes one brand better than another?”
>> There can be differences in warranty, customer support, design, and reputation. For the most part, it’s the component selection that makes one offering better than another. Stepping up to the next level bike can equate to higher quality wheels, drivetrain, brakes, etc. The LBS staff will explain this to you.
What really matters is how well the bike fits you and how well it will serve your needs. If your commute is lengthy or you’ll be riding harder at times, spending a bit more to get something with higher quality components can mean a more reliable and more enjoyable riding experience. For a geared commuter bike, I’d personally want nothing less than Deore derailleurs & shifters. I’d also avoid cheap or off-brand brakes (like promax). Riding in traffic requires good braking performance.
If you find a bike that is reasonably priced but suffers from a cheap derailleur or brakeset, discuss this with the LBS. For a relatively small upcharge, you could have the inferior parts replaced for quality components at the time of purchase. This is wiser than riding the bike for several months and then resorting to make the upgrades at full price.
And check that the saddle is comfortable. If you haven’t been riding, you’ll be a bit uncomfortable initially anyhow. But if you have a good feeling that the saddle won’t work for you, get it switched out at the time of purchase. Mfrs know we all have different bums with different needs, so they just compromise by spec’ing a saddle that might work for many/most people…but certainly not all.
If the LBS is agreeable to making these changes, feel confident doing business with them. At your budget, it’s not possible to get “ripped off,” but it is possible to waste your money on a bike that won’t suit your needs or doesn’t fit you or your style of riding.
Good luck on your purchase and your commuting.

At your price range you should be looking for the best bike without a shock.It will have better parts and you do not want the cheapest shock in the store.One can always purchase it later.
I recommend looking for a bike with as much shimano Deore as possible as it is very easily maintainable.
By choosing a bike shop you have already done the best part.The bike will be built properly and every store I have been to offers one free tune up with purchase.This means that they will tighten everything and retension your cables for you.
Do not worry too much about the brand of bike as much as the fit,because that is what’s important.
I hope this advice can be of help to you.

For commuting and lite trail riding look at the comfort/pathway bikes. You can get a decent one for around $400. You wont have much to chose from at that price but it will be a nice bike. As you go up in price you get the better derailleurs, rims, cranks, chain, brakes etc.
Like some else said get a bike without shocks, it will be liter and you really don’t need them.

In that price range your selection is so limited you won’t have much to choose from.
More or less, the higher the price, the better the quality of the parts. 105 is better than Sora…..

all you need to do is trust the sales person. everyone has diffrent preferences on Components. any bike in a nice bike store wont suck. just trust the salesperson.