FL-4 Crown Liner 206 Carb this front panel is found

this front panel is found on many modern racing karts today

0 thread size and pitch

Odenthal offers the UNFR and UN20 line of clamps - each fits a traditional chassis tube (say 28-32mm tubes)

25mm ID x 5mm width | aluminum w/black anodize

FL-4 Crown Liner 206 Carb this front panel is foundCrown Liner Padding for Zamp FL 4 Helmets. These pads replace the internal front crown and head lining for the Fl 4 helmet, and is ideal for the top areas of the helmet when original padding may be oversized, undersized, or compromised by dust and debris, or sweat. One advantage Zamp helmets is the replaceable padding material in each helmet, like this padding. Padding is available in a variety of padding sizes for a variety of helmet sizes.