S&S, 4-1/8" bore 124" long block TC engine. Black/chrome - 99-05 Dyna; 99-06 Touring (NU) 520085 Compatible with 508721 Bare Bones

Compatible with 508721 Bare Bones solo seat with rider backrest

Careful yet reliable gripping

Made from a 60% cotton

Integrated radius air inlet for performance gaining unobstructed airflow

S&S, 4-1/8" bore 124" long block TC engine. Black/chrome - 99-05 Dyna; 99-06 Touring (NU) 520085 Compatible with 508721 Bare BonesBlack Chrome. Low Compression engine. Low compression is less sustainable to knocking and will give longer engine life. Engine comes with 10. 2: 1 CR dished forged pistons and 585GP easy start cams. Engine is sold as 'Long Block', meaning these are engines without any intake components or ignition. Any high performance intake system, that will fit a stock engine, will fit the S&S 124" since S&S specially machined the heads to compensate for cylinder