Chromag Rootdown Frame

C$1,050.00 C$945.00
IN STOCK
SKU: CR201-131-04
The Rootdown is hands down our best selling bicycle.

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Delivery time: 1-5 Business Days

The Rootdown is hands down our best selling bicycle.

Built with our custom-drawn tubes and featuring a 12x148mm Boost rear end and stealth post routing, this is the evolution of Chromag frame design in 29er form, compatible with tires up to 29" x 2.5 and 27.5+ up to 2.8 wheels. An agile ascender and a dominant descender that is ready for anything.

  • Looking for something more aggressive? Check out the Doctahawk.
  • Looking for the Canadian made version? Check out the Primer.

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.

Hub Spacing // Boost 148mm (Axle and Hanger Included)
Headset // 44-56 Semi Integrated
Seat Clamp Size // 35mm
Seat post Size // 31.6mm
BB // 92mm Press Fit (PF92)*
Wheel Size // 29" or 27+
Recommended Fork Travel // 150 - 170mm

ROOTDOWN GEOMETRY

Frame Size S M M/L L XL
STACK 630 630 639 648 657
REACH 421 446 463 487 503
EFFECTIVE TOP TUBE 578 603 622 648 667
HEAD TUBE 95 95 105 115 125
WHEEL BASE 1177 1202 1223 1251 1272
BB DROP 50.8 50.8 50.8 50.8 50.8
BB HEIGHT 320 320 320 320 320
STAND OVER 677 714 738 762 799
CHAIN STAY 420 420 420 420 420
SEAT TUBE 368 406 431 456 494
MAX POST INSERTION* 188 226 251 276 314
HEAD ANGLE 64°
SEAT ANGLE 76°
WHEEL SIZE 29''

* Max. post insertion based on Rockshox Reverb