Amkaos, the Trek FX series are all hybrids. They weigh close to the same amount. What difference does it make to you, if you're not racing these bikes? Besides, one doesn't usually race hybrids anyway.

One thing for certain, if you buy a Trek that has disc brakes, it will weigh more. IMHO, you should just get a Trek 7.5FX and be done with it! You're going to need the support of your LBS.

If you have great hills to climb and your roads are frequently wet, then get the Trek 7.5FX disc. This recommendation is strenuously urged, if you're overweight.

- Slim