Giant Composite owners: a question...

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Anonymous's picture

Hello gang,

I went shopping the other day for a carbon fiber bike road bike, and the Giant Composite bikes looked like winners (I guess I could get used to the ugly graphics), except for one thing: rear tire clearance. It appeared to be about 2-3mm, tops.

What's the biggest tire anyone's put on one of these bikes? I usually ride with 700 x 23's, but I switch to 700 x 25's come winter time.

Another bike I'm considering is the Specialized Roubaix, their carbon bike. It appears to have tons of clearance.

Thanks for your help.

Anonymous's picture
Herb (not verified)

David, Liane rides with 23's. And it looks like there's plenty of room for 25's. How's the wrist?

Anonymous's picture
Heath (not verified)
It sure is tight

I just walked over to my bike to take another look. It really is tight. It looks like 5mm on my bike. (Measured with a tape measure not a micrometer.) I never realized it before, but there is an indentation in the seat tube where the tire would hit. I wonder if it was cut out for 25's.

I have not tried 25's, so I am also curious as to the answer.

I really like my Giant. I have not ridden the Roubaix. But did I mention that I like my Giant.

Anonymous's picture
Herb (not verified)
comfort performance

David, I just read a report on the Roubaix. It has relaxed geometry and Zertz dampers in the seatstays, fork and seatpost to reduce road vibration. It's one of a new area of bikes called comfort performance.

Anonymous's picture
David Regen (not verified)

"Thanks for the info--I always listen to the experience of people I know over what I read in some magazine. It sounds like 25mm tires would work on the Giant.

The salesman at Toga said I can test ride both the Roubaix and the Giant, so I plan to; just bring shorts, cleats and pedals. Then I'll know if there's anything to the ""comfort performance"" talk.

My hand is 100% healed (surgeon said so last week); thanks for asking. It feels fine, like it never happened. I hope to see you guys in a lot of group rides this summer.



Anonymous's picture
Mark (not verified)

The reason there is so little room is because the Giant has what's called a slope geometry which helps those with short legs and a long torso. So you have the reach of a larger bike but the height of a smaller frame. Because of the way the seat tube is sloped is what leads to the wheel being so close to the seat tube.


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