The Promax Impact Toploader Stem (22.2mm Clamp) features a black finish and is constructed from durable 6061-T6 aluminum with visible bolts and branding, offering a secure top-load clamp design for attaching handlebars to the bike’s steerer tube—making it ideal for BMX racing stem applications.

Promax Impact Toploader Stem (22.2mm Clamp)

Black / 48mm
$64.13
$64.13 $85.51
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The Promax Impact Toploader Stem (22.2mm Clamp) features a black finish and is constructed from durable 6061-T6 aluminum with visible bolts and branding, offering a secure top-load clamp design for attaching handlebars to the bike’s steerer tube—making it ideal for BMX racing stem applications.
  • The Promax Impact Toploader Stem (22.2mm Clamp) features a black finish and is constructed from durable 6061-T6 aluminum with visible bolts and branding, offering a secure top-load clamp design for attaching handlebars to the bike’s steerer tube—making it ideal for BMX racing stem applications.
  • Four Promax Impact Toploader Stems (22.2mm Clamp), crafted from durable 6061-T6 aluminum and available in red, black, blue, and gold—each featuring a top-load clamp—are displayed side by side on a white background.
  • The Promax Impact Toploader Stem (22.2mm Clamp) features a black finish and is constructed from durable 6061-T6 aluminum with visible bolts and branding, offering a secure top-load clamp design for attaching handlebars to the bike’s steerer tube—making it ideal for BMX racing stem applications.
  • Four Promax Impact Toploader Stems (22.2mm Clamp), crafted from durable 6061-T6 aluminum and available in red, black, blue, and gold—each featuring a top-load clamp—are displayed side by side on a white background.
Promax Impact Toploader Stem (22.2mm Clamp)

Promax Impact Toploader Stem (22.2mm Clamp)

$64.13
$64.13 $85.51
Title

Promax Impact stems have a 45-degree top-load clamp design for BMX racing and freestyle. Available with 48- and 53-millimeter extensions, they are cold forged from the highest quality 6061-T6 aluminum then CNC machined to refine the shape and further reduce weight. The "open" design keeps weight low (260 grams/9.2 ounces in a 48-mm extension and 265 grams/9.3 ounces in a 53-mm extension), while maintaining plenty of strength and ensuring your bars stay put.

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