Just ordered up some 4130 for two in frame TITANS. Have a hydraulic hosfield bender with a limit switch and a harley wide drive soft tail fixture. I can take the plate off the fixture that held all the comonents and leave the head tube fixture.I got tired of seeing the old fixture sitting around. Two stroke and four stroke 49cc, ##cc dual disc no pedals. Disc single speed hub 135mm spacing. legal in some places. If it does not work it will always make a great looking coffee table.