PA466: Left Side, PolyDrop, Flat Mount, 140 Rotor, No Eyelets, 12 mm

PA466: Left Side, PolyDrop, Flat Mount, 140 Rotor, No Eyelets, 12 mm

17 In stock

  • Buy 10 for $27.23 each and save 8%
  • Buy 25 for $24.96 each and save 16%
  • Buy 50 for $22.72 each and save 23%


This is a left side (non-drive) replaceable insert for our PolyDrop assembly that is compatible with the Shimano E-Thru, DT Swiss RWS, and PMW combination head 12 mm skewers only and flat mount disc brakes. Made from 6061 aluminum, it has a flat mount for a 140 mm rotor and no eyelets. Includes five M5 x .8 oval-head cap screws made from black zinc-plated steel.

Important Information
  1. The brake mount thickness is 25 mm; use the 34.3 mm bolts supplied by Shimano.
  2. The torque specification for our PolyDrop steel screws is 7 N-m or 60 inch pounds. Make sure that the insert and screws are clean. Use Blue Loctite (243) or other equivalent thread locking compound.
  3. Frames built for 135 mm x 10 mm spacing can use this insert with a 142 x 12 mm skewer (nothing wider).
  4. Choose the appropriate skewer based on the right side insert.
  5. Skewers are available at a 23% discount with the purchase of a compatible right side insert; one skewer discount per insert.
  6. Skewer and insert compatibility is only guaranteed when used with a compatible Paragon Machine Works product.
  7. Sorry, no returns on skewers. Please check skewer drawings for measurements before ordering.
  8. We are not able to advise or make recommendations on compatibility with products that are not manufactured by us.

Item sold as 6 piece set.



Item Number PA466
Weight/Grams 72
Insert Type Flat Mount
Skewer OD 12 mm
Plating Bare
STEP File (right click, "save as") PA466
PDF Drawing PA466