Cambridge hipsters unite - a game of bicycle tag

I'd recommend switching to freewheel before taking a lap on those steep kickers. Or if you're suicidal and you wanna go fixed, at least bring a helmet - or an emergency first aid kit ^_^

Sounds like a challenge to me...

Don't know whether I'll be able to get out there before Thursday this week though - stupid work/tradesman/circuits class/alley cat...