The City Paper's Housing Complex recently reported on BicycleSPACE plans to expand in Adams Morgan.
The neighborhood is already well served by City Bikes (and this writer has been bringing his bikes to that store for servicing for years).
Some might see two stores as competition, but that might not be the case. The proximity of two bicycle stores may make Adams Morgan more of a city-wide destination for people who are bicycle shopping.
If these stores have competition at all, it's likely from Capitol Bike Share. Many, it seems, would prefer to rent than own. The bike station at 18th and Columbia is frequently emptied out of rentals, especially in the morning.
It's also great to see the arrival of a retail store in neighborhood. It needs more of a mix.