Jason Lo

my fd (not really close) said gonna sold his 2007 7.6fx for $500
I want to get a bike but I never have a bike
he told me get a used one is much better than get a new one.
Im just wondering should I get it? or just get a newer trek 7300?

is there any difference between 2007 7.6fx or 2011 one?

7.6fx
carbon fork,
carbon back bracket,
carbon seat post,
new seat
Gravity flat handle bars
fsa stem
27spd shimano 105
new trigger shifters

do you guys have any suggestions?
use bike just for in town
budget: ~500bucks

Jason Lo

btw Im 6'2"
large frame 20inch
29inch wheels

do the bike fit me well?

thanks guys

Dunbar

At 6'2" you probably want a 22.5" frame. The specs look to very close. $500 is a pretty good price for a used 2007 model.

I don't personally see the advantage of carbon seat/chain stays and don't think it's an ideal setup for durability. I'd rather have the better components on the 7.5FX which has aluminum seat/chain stays.

a1penguin

The 2007 at $500 would be a good choice for an around town bike. You'll have to test ride to see if it fits you. I'm 5'7", 30" inseam and have a 17.5" 7.5. I needed to raise the seat. I certainly wouldn't want a 15" frame, and I think 20" would be a bit large for me. Depending on your proportions, I think the 20" FX might be too small for you, but you would have to try it out. I don't want to debate bike fitting/sizing. According to this article,

"This is the one every bike shop owner or gym assistant will tell you whenever you clamber onto the saddle. You place the heel of your shoe on the pedal and set the saddle height so your leg is straight at the bottom of the pedal cycle with the pelvis remaining in a horizontal position.

Despite this commonly heard method, there is virtually no scientific evidence to support it and it often leads to the saddle height being adjusted too low."

Once you raise the seat 30 inches (exaggerating here) to meet the seat heigh criteria, the bars are now a lot lower than the seat and you end up hunched over instead of more upright.

You are tall enough that you might actually find a decent bike on Craigslist. There seems to be an large percentage of really large and really small frame sizes on CL.

Dunbar

Not to go off topic but I think the heel method is a good starting point if done properly and has the advantage of being relatively easy and free. The article you linked to recommends measuring the knee angle at full extension with a goniometer. That method is no less controversial and often leads to saddle height being too high. Steve Hogg says to avoid any bike fitter who breaks out a goniometer.

https://www.stevehoggbikefitting.com/...ard-can-it-be/

Jason Lo

thanks

how about Diamondback 2012 Insight 2 Performance Hybrid Bike?
is it a better choice to spend $500
https://www.amazon.com/Diamondback-In...487229&sr=1-18

SlimRider

You'd be better off purchasing a new aluminum or carbon framed bicycle. Of course, purchasing a used chromoly steel framed bike doesn't matter as long as it doesn't have any rust or weld issues.

I say, check this road bike out!

www.bikesdirect.com/products/motobecane/motobecane_record_x.htm

Good Luck!

PS.

Of course, the Diamondback is nice, too!

- Slim

SlimRider

Best to go with Amazon's Diamondback!

xoxoxoxoLive

Just want to comment on the size part of your question, plenty of FX riders here to answer the other. Sounds to small for you, I like a 20" myself and am only 6' with shoes on and they seem to fit me good. You might need an XL size.

Jason Lo

thanks guy. it helps me a lot=]

richard4993

I'm 6'2 and I fit fine on my 20" 7200 but I don't know if the same would apply on an FX. You also mentioned getting the 7300 as another option. Those 7000 series Hybrids are more upright comfort bikes and tend to be a little slower whereas the FX series is a little more of a road bike so you'll be leaning over a little more and the bike will be much lighter so you'll be able to go faster with much less effort than you would on an FX.

xoxoxoxoLive

Found this online.



Hybrid Bikes - Finding the Right Size



Your Height Your Inseam Length Bike Frame Size

4'11" - 5'3" 25” - 27” 13 - 15 inches

5'3" - 5'7" 27" - 29" 15 to 17 inches

5'7" - 5'11" 29" - 31" 17 to 19 inches

5'11" - 6'2" 31" - 33" 19 to 21 inches

6'2" - 6'4" 33" - 35" 21 to 23 inches

6'4" and up 35" and up 23 inches and up


Link : https://bicycling.about.com/od/howtor...rid_sizing.htm

According to this online chart it should fit. I just prefer the largest bike that my size allows me to ride. But that's a personal preference.

(note) after 2 times of editing the chart to fit, I gave up

Jason Lo

thanks guy.
now I still cannot decide which Hybrid bike should I go..
used 7.6fx or new Amazon's Diamondback

As SmileRider said, Diamondback is the best way.
However, if I buy a bike online do I still have warranty ? so, if the bike go wrong, can I just bring it to any Diamondback local dealer?

or, if I buy the used 7.6fx, can I bring it to local bike store for a tune up, and check it if the bike has any problems ?

EdgewaterDude

As other FX owners have said, be watchful of the frame size you choose. I found out the hard way that the FX bikes have deceptively long top tubes for their height, relative to seat tube. I'm between 5'7" and 5-8" with a 30.5 inseam, and stupidly chose the 20". I had to mitigate the super long reach by swapping the stem to a 60mm just to compensate for the extra length. I also have less than a fist-full of seat tube showing. Take a look at the chart below to see how the 20" (51 cm) has the top tube of a typical 56cm road bike.

https://www.trekbikes.com/us/en/bikes...ness/fx/7_6_fx

SlimRider

Hey there Jason,

Always buy NEW aluminum framed bicycles. It doesn't matter if you buy your bicycle new from a local bike shop or online, the manufacturer has to stand by its warranty. As long as the online outlet has been authorized and noted as a reputable dealer, your manufacturer's warranty will be honored. So, it's ok! Just order the Diamondback from Amazon.com

If you have any questions about it, just call customer service at the following numbers:

Amazom.com at 1-800-201-7575 and Diamondback at 1-800-222-5527

Good Luck!

* If there's a problem with your bicycle, just take it to a Diamondback dealership that's closest to you.

- Slim

PS.

Also Amazon.com warranties almost everything for the first 30 days, after your purchase. That's in addition to the manufacturer's warranty!

Just keep your receipt!

himespau 

at 6'2, I ride a 22.5" bike (not a Trek Fx though) and find it a bit small. I'd say try it but go in not expecting to buy it. I definitely like the idea of buying used for a better value as long as you know what you're getting into. Nothing wrong with buying used aluminum. It's the used carbon that is where the danger lies.

Dunbar

Yes, but road bikes don't have straight bars like hybrids. They have drop bars which are designed to be ridden on the brake hoods the majority of the time. The brake hoods place your hands 100-150mm further forward than the straight section of the bars.

I'm 5'9" with a 31.5" inseam (roughly same torso length as you) and my 20" 7.5FX fits me perfectly with the stock stem. Then again, I don't know many people who would recommend a 20" frame for someone 5'7" to 5'8" tall although your inseam would probably allow it to work with the aforementioned short stem. My personal opinion is that cycling inseam is more important than height when selecting frame size.

xoxoxoxoLive

Not really sure if this will pertain to this thread, but for what it's worth. I know that the Specialized Sirrus Limited is the same exact frame as there Road Bike Secteur, also the component set up is almost exactly the same to. The dealer was showing me in his catalog that all they did was put on drops. I just printed out both for heck of it, and that sure changes the reach from one to the other. Maybe Trek does the same thing ? Wondering myself. Richard

EdgewaterDude

The LBS repeatedly suggested that I get the 17.5" frame size. I insisted that I needed something much bigger. It's my own fault that I didn't consult the geometry chart before purchasing. I agree with you that overall height is probably the last thing you should use to size a bike, because we're all proportioned differently. However, I think top tube length is probably the single most important piece of information needed (along with multiple measurements of specifics in torso area/arms.) I say this, unless you are proportioned like an orangutan and have freakishly long limbs.

That's an interesting bit of information. Like Dunbar said, that will change the fit of the bicycle, for sure. Though, one thing I question regarding Dunbar's point is that overall ride fit on a hybrid is significantly different than on a road bike. I feel much more stretched out and horizontal on a road bike whereas I'm fairly upright on my 7.3FX. Typically, frame geometries take this into consideration, which is why it's puzzling that Specialized would do something like that.

xoxoxoxoLive

I asked him the same question, he just said some people prefer drops over straight bars, or maybe it was the other way around.

Dunbar

I looked it up and the Sirrus Limited ($2100 carbon fiber hybrid) appears to be the same frame as the Roubaix (not the Sectur). On the aluminum framed Sirrus models the top tube is 22mm longer which is what you would expect. So it appears Specialized did it that way so they use an off the shelf road bike frame in what is admittedly a very low volume model.

xoxoxoxoLive

You are right, it is the Roubaix. (sorry)

himespau 

Hey, leave us monkey people out of it. I have a mtb that I've converted to drop bars and still need a 140 mm stem to be comfortable. Though the 6 inches of seatpost might be saying I need something bigger than a 22.5" frame.