Aperture - Pearl White - S

$1,900 CAD $2,900 CAD

Complete Aperture, 26",  Pearl White, Small 15.5" Floor Model.

The Aperture is an all mountain hardtail destined for a broad variety of trail riding first developed in 2014. With a custom tubeset mated to our proprietary drop outs and stainless steel ISCG tabs this chassis can be built as tough as nails, can accept a chain guide or Hammerschmidt device and still come in at a reasonable weight.

This model has been freshly painted, with a lovely matte to gloss pearl fade. This would make a great bike for a young one or beginner mountain biker looking to get a quality built hardtail and a piece of Canadian mountain bike heritage to boot!

  • Stainless ISCG 05 tab for long life
  • Custom Chromo tubeset
  • Custom machined dropouts
  • Handbuilt in our Taiwan partner factory
  • 5.65lbs / 2.56 kg frame weight

Only 1 piece in stock!


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Almost all Chromag frames are made from quality 4130 chromoly steel tubing. Chromoly is an abbreviation for chromium-molybdenum indicating the materials that the steel is alloyed with.

The added chromium helps increase the steels hardenability and also provide some corrosion resistance.
The molybdenum helps to increase the toughness of the steel.

It has a high tensile strength but is also malleable which is what gives our frames their notorious ride quality and feel. Chromoly is often used when more strength is required than that of mild carbon steel.

It falls under the AISI (American Iron & Steel Institute) 41XX designations which is where the “41” comes from. The “30” indicates it contains approximately 0.30% carbon by weight.

Chromoly is much stronger than traditional 1020 steel and it has a higher strength to weight ratio and high tensile strength, which means we can use less material and achieve a product that can withstand the abuse that riders love to throw at it.

Chromag 4130 Tubing

Chainstay 16.5" / 420mm
Headtube 4.5"
Head Angle 68°
Seattube Angle 73°
BB Height 12.5" / 317mm
Seatpost Size 27.2mm
Headset Size 44mm
Ft. Deraileur Size 28.6mm
BB Shell 73mm

*Angles measured with respect to atypical fork travel at 5" / 125mm

S M M/L L
Rider Height 5'2-5'7
156-170cm
5'5"-5'10
165-178cm
5'8"-6'2"
171-187cm
5'11-6'3"
180-190cm
Toptube Length (effective) 22"
550mm
23"
575mm
23.75"
593mm
24.35"
610mm
Seattube Length (c-top) 15.5"
394mm
17"
432mm
18.5"
467mm
19.5"
510mm