It is very competitive out there.

I'd suggest emphasizing fit and customer service. Fit the odd balls tall, short, fat, thin, short legs, long bodies, long legs, short bodies. It is easy enough to find a bike that fits if you are in the middle of the bell curve... Maybe partner with a local frame builder. And cool bikes for kids: road bikes and fs mtbs. Although my LBS doesn't stock many bikes that fit me, I do appreciate that they have women working there. I feel comfortable dealing with the women in the shop. The guys are ok, too.

Clothing for women! and the big guys! Don't we all like looking good when out on the road or trail! Most LBSes have a small inventory and yes I've got a lot of PI shorts already.

Allow demos of bikes. You might go far in winter renting the xc and snowshoes, as well as selling.

Best of luck with your dream. Hope it becomes a reality.

SKM