Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Commuting Bicycle commuting is easier than you think, before you know it, you'll be hooked. Learn the tips, hints, equipment, safety requirements for safely riding your bike to work.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-05-14, 04:22 AM   #1
odedidush
Newbie
Thread Starter
 
Join Date: Jul 2014
Bikes:
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Trek FX series

Hi,
I ride to work everyday about 15 miles per target, the road is diverse : road trip , sidewalks,easy gradient , sometimes holes .
This days I ride with a mountain bike to work and i want to make the riding easier.
I've recommendations about buying Fitness bikes : TREK FX 7.3 , yesterday I went to the TREK store to test drive and they offer me to upgrade to advanced model - FX 7.5. They explained to me that they are more quickly and perform better in urban areas in terms of speed and durability.
Also, they presented the following table compares the two models but i did not really understand the differences.
Can you advise me which model to choose and explain to me what are the differences between the models.

Table at :
Bike model comparison - Trek Bicycle

appreciate .
odedidush is offline   Reply With Quote
Old 07-05-14, 09:30 AM   #2
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,086
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
a bit more up tick in price upgrades the components significantly..

component companies have several levels of components .

you get a lot more for your extra $100, or so, than the cost of the parts if you had to do the upgrades

... after you bought the lower cost bike.
fietsbob is offline   Reply With Quote
Old 07-05-14, 10:59 AM   #3
tsl
Plays in traffic
 
tsl's Avatar
 
Join Date: May 2006
Location: Rochester, NY
Bikes: 1996 Litespeed Classic, 2006 Trek Portland, 2013 Ribble Winter/Audax
Posts: 6,934
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by fietsbob View Post
you get a lot more for your extra $100, or so,
I dunno Bob. Maybe it's new math or something, but I see a $440 difference between the two models the OP is asking about.
tsl is offline   Reply With Quote
Old 07-05-14, 11:06 AM   #4
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,086
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
>|< "...or so..."

Homework : * price out what all the parts would cost retail and compare the whole spec list

Saying ...
the upgrades, if done later, aftermarket, will cost more than that $400.00

* OP to put out the effort.. since they asked..

Last edited by fietsbob; 07-05-14 at 11:10 AM.
fietsbob is offline   Reply With Quote
Old 07-05-14, 11:14 AM   #5
jeffpoulin
Senior Member
 
Join Date: Jul 2008
Bikes:
Posts: 2,173
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'd get the 7.5. You'll be less likely to want/need to upgrade it. I have a 7.7FX that I bought in 2008 and it gets lots of use. The mix of Ultegra/105 components are still going strong after nearly 20,000 miles.
jeffpoulin is offline   Reply With Quote
Old 07-05-14, 11:33 AM   #6
tsl
Plays in traffic
 
tsl's Avatar
 
Join Date: May 2006
Location: Rochester, NY
Bikes: 1996 Litespeed Classic, 2006 Trek Portland, 2013 Ribble Winter/Audax
Posts: 6,934
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
There are three major differences between the 7.3 and the 7.5--besides the price.

1) Fork. The 7.3 has a steel fork, the 7.5 has a carbon fiber one. There are religious wars between fans of each. Steering away from that, I've owned a low-end aluminum Trek with a steel fork. After being hit by a car, I replaced it with carbon fiber. The difference was night and day. The carbon fork has a much more forgiving ride.

2) Drivetrain. The 7.3 has a low-end MTB crankset. The 7.5 has a road crankset. The 7.3's crankset does not have replacable chainrings (the gears). When you wear out a gear, you have to replace the entire crankset. When you wear out a chainring on the FSA crankset, you simply replace the one gear. How long they last is largely a matter of your conditions. I ride every workday, no matter what the weather. Upstate NY winters are murder on parts. I got about 10,000 miles out of the middle ring on my primary commuter's triple. Fair weather riders get three to four times more.

The difference bwteen the triple on the 7.3 and the compact double on the 7.5 is largely one of personal preference, local terrain, and your power output. I'm a flatlander and compact doubles drive me nuts, because at my power output, my cruising speed is right between the two rings. I'm either cross-chained in one, or cross-chained in the other. Both stronger and less strong riders love them. I'm in the middle--too strong that I run out of gears in the 34, but not strong enough to push the 50. Triples (or standard doubles) work better for me. But what works for me may not be the best choice for you or for anyone else.

The shifters are also different between the two bikes. I don't ride mountain bikes so I'm not qualified on the topic of differences between models of MTB shifters. However, in Shimano's road equipment, R series is always pretty good stuff--above average, verging on excellent.

3) Wheels and tires. This one's tough because there are so many variables. Weight and number of spokes don't necessarily mean stronger or weaker wheels. I had a bike with heavy 32-spoke wheels (like the 7.3) which were crap--lasted about a year. I also had a Trek that came with lightweight Bontrager 24-spoke wheels (like the 7.5). Those too were crap and lasted for only a year. There's also the matter of your weight, how you manage that weight on the bike, your terrain, and your riding style.

My advice? Look at the 7.4. You get the carbon fork, but for a lot less money. Then replace components with better quality when the originals wear out. Meanwhile, use the money you save over the 7.5 for quality accessories--lock, lights, fenders, rack, panniers, and so on.
tsl is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 07:39 PM.