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speed bicycles 20 mil pro xxl speed bicycles 20 mil xlt pro xxl
M546-20 (Pro XXL) XLT

The new Speed M-Series XLT frames are the backbone of what may be the fastest BMX bike design ever offered, but at around a half pound lighter than the original M-Series frames. The weight loss comes from a new tube set. Each tube was meticulously engineered to be lighter weight, yet retain strength and rigidity where needed. An M-Series Limited 533 frame weighs in at 3.5 pounds. All Speed frames include chain tensioner blocks that make them compatible with standard as well as Sinz Elite 20-Mil iHub rear wheels. Available in four 20-inch and two 24-inch cruiser sizes and two colors—New Zealand Black/White or White/Black with a hint of gold.

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  • Top Tube: 546.1mm (21.5")
  • Down Tube: 566.5mm (22.30")
  • Chain Stay: 368.2mm (14.8")
  • Head Tube: 120mm
  • Head Angle: 74 Degrees
  • Seatpost Angle: 72 Degrees
  • Seatpost Size: 27.2mm
  • BB Height: 292.1mm
  • Wheel Size: 406mm
  • Wheel Base: 987.6mm
  • Weight: 1599 Grams

Part#: SRC2PXX-1

High Resolution images
M546-20 XLT
Spec Drawing