S3 is the specialist in Trial and Enduro parts. Innovation and high quality are the key words guiding the design of the elements that will make a difference. Tested in all conditions, the S3 products are at the cutting edge of technology and equip the best riders and trial teams.

• These flywheel weight will fit any Beta EVO 250-300 2T.
• They change the power delivery making the bike smoother and more controllable ‘off the bottom’
• They will help the bike grip better and help stalling
• They come with an ignition weight and bolts
• You don’t need to remove flywheel
• Easy to fit