Chromag Rootdown (Series VI) Complete Bike - 2025
There isn't much a Rootdown hasn't done. Its made for all around hardtail shredding in all kinds of trail conditions. Its a versatile All-Mountain 29er hardtail featuring premium materials, detailed construction, and progressive geometry. The Rootdown is a versitle trail bike eager to keep going mile after mile.
4130 Chromoly Steel
The Rootdown is 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 Chromag's 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 they can use less material and achieve a product that can withstand the abuse that riders love to throw at it.
Tech Specs
| Frame Material: | Steel |
| Wheel Size: | 29" |
| Rear Axle Standard: | 12x148mm Boost |
| Headset: | Cane Creek Forty ZS |
| Headset Standard: | ZS44mm/ZS56mm |
| Fork: | Rock Shox Lyrik Ultimate 160mm Boost 110x15mm |
| Fork Axle: | 15x110mm Boost |
| Wheelset: | Chromag 29" Phase30 |
| Front Tire: | Maxxis Minion DHF |
| Rear Tire: | Maxxis Minion DHR |
| Crankset: | SRAM GX 170mm |
| Chain: | SRAM GX Eagle |
| Rear Derailleur: | SRAM GX Eagle |
| Cassette: | SRAM GX Eagle 10-52t |
| Seatpost: | RockShox Reverb (125mm - S) (150mm - M) (175mm - M/L) (200mm - L, XL) |
| Seat Post Diameter: | 31.6mm |
| Seat Post Clamp Diameter: | 35mm |
| Seat: | Chromag Trailmaster DT |
| Shifters: | SRAM GX Eagle |
| Handlebar: | Chromag OSX 25mm Rise, 800mm |
| Stem: | Chromag HiFi BSX 40mm |
| Grips: | Chromag Format |
| Brakes: | SRAM Code RSC |
| Intended Use: | Trail/AM |
Specs subject to change without notice. Please check with manufacturer for the most up-to-date information.
Geometry
mm / inches
Sizing
cm / ft
| Size | S | M | M/L | L | XL |
|---|---|---|---|---|---|
| Rider Height (cm) | 155 - 165 | 162 - 173 | 170 - 183 | 180 - 191 | 188 - 198 |