Happy March almost! Sunday Bikes celebrates St. Paddy's day a little early with this Shamrock Bonus Bike, a limited-edition take on the entry-level Spark done up in kelly green. At 26.2 pounds it's not exactly a featherweight (thanks in part to its hi-ten/cromo frame), but the geometry is correct, as is the 25/9 gearing. And it's hard to beat the $380 MSRP. Available tomorrow at select Sunday dealers and mailorders. Best act quick though, because when they're gone, they're gone.