Trek 7.3 or 7.5; Specialized Sirrus; etc.
hi. helping teenage son pick a bike. he will do some recreational riding - to school (occasionally), friends' houses, the beach, etc. (usually no more than 5 to 8 miles each way). however, he is also planning to do longer, faster rides (on paved roads) to help build fitness for his fall (cross country) and spring (rowing) sports. he seems to be focused on bikes like trek 7.3 ($480 at local shop), trek 7.5 ($680), and specialized sirrus ($550) which are just on the border between road bikes and hybrids. open to any feedback/input, but specific questions:
1. is the $200 difference between the two Treks worth it? my sense is he'd be fine with the 7.3.
2. Sirrus costs about $70 more than the 7.3; is it better in some way, or is it just a more-expensive brand?
3. is there any other, similar brand/model he should consider?
thanks very much...