The IttyBittyBikeShop is located inside the Parasol Warehouse:
303 W Griggs Street
Urbana, IL 61801-2609
Here's a handy map from Google:
Hours at the IttyBittyBikeShop/Parasol Warehouse:
Monday - Saturday (9:00am - 4:00pm)
Note: Our mechanic is here Tuesday-Saturday. You are welcome to drop your bike off on Monday but he won't be able to look at it until Tuesday.