This is X spede front bearing dirt shield protector. Front bearings are not 100% sealed and the possibility of dirt entering the engine through the front bearing . Both the bearing and engine can be damaged . This machined stainless steel dirt Shield fits most .21 through .30 engines and it protects the bearing by preventing dust from getting in, it will increasing engine lifespan.

FEATURES:

Protects front bearing, for increased bearing and engine life
Machined stainless steel
Fits most .21 and .30 engines
Includes
One stainless Steel Dirt Shield.
One specialized flywheel collet

SPECIFICATIONS:

Inner diameter: 24.18mm
Outer diameter: 25.15mm
Weight w/Collet: 3.8g