DIRTY AIR 22CAL compressor is compact, powerful, and reliable.  This is the compressor used in older rear systems, and on bikes where space is very limited.  250psi max pressure, 200psi working pressure, we run 200psi pressure switches with these compressors on very small tanks.  12 Volt, includes check valve with 1/8"NPT outlet.  
2" diameter motor
5.5" Long
2.2" Wide
4.4" High