Doctahawk 27.5+"/29"

Powerful climbing, aggressive descending. That's what the Doc ordered!

Longer, lower, slacker, faster, stronger, slacker, etc etc, did we say slacker?

If you liked where the geometry of the Rootdown was headed but it wasn't enough, then the Doctahawk is for you.

Handbuilt in Canada with our custom-drawn tubes and featuring a 12 X 148 Boost rear end and stealth post routing, this is the most aggresive Chromag to date. Don't let the 62° head angle fool you though, the Doctahawk actually features the steepest seat tube angle in the line making sure you can get up to get down. Coupled with 180mm up front there's plenty of opportunity to hear "I can't believe they rode that on a hardtail!".

TIRE SIZE

29 x 2.5” or 27.5 x 2.8”

REAR SPACING

12x148 Boost

TRAVEL

Design optimized for a 180mm fork

WEIGHT

6.3lbs (Medium/Large, Frame Only)

Features

Chromoly Tubing

Making modern chromoly frames is challenging when most of the tubes available on the market are from an era of mountain biking long past. After several years of frame production we reached the point where we could design and produce our own custom tubing for the majority of our frame tubes. This contributes to the unique look of many of our frames but more importantly allows us to configure our bikes exactly as we want for each design.

Dropouts

As 12mm through axles have proven to be solid, reliable and convenient, we have committed most of our models to utilize this format.   Our 12mm dropouts are accurate and tough and feature a removable derailleur hanger with a sturdy interface for strength and reliability.  All 2019 models (excluding Monk and Nice Dreams) will follow the 148mm boost spacing.

Head Tube Badge

Bikes are special. The headtube badge is the finishing touch so we’ve always made a point of taking the time to do something interesting with it. Our headtube badges have changed over the years and are an indication of the time each bike was made. Whether it’s a cast bronze, or polished stainless steel, water cut aluminum or a 3D CNC carving, each one represents our commitment to detail.

Yokel

Our ‘Yokel’ design is a small machined junction on the chainstay that helps accommodate both tire clearance and chainring clearance. Our first versions were huge CNC yokes that bridged the entire front end of the chainstays. Over time we refined this to minimize weight by arranging our chainstay layout asymmetrically and reducing the yoke to a minimal size. It’s one of our most unique frame features and has been copied by other frame makers.

Colours

 

Custom Colour Choice

Geometry

 M/LLXL
Typical Rider Height 5'8"-6'2" 6'-6'4" 6'3"-6'7"
Top Tube Length (Effective)  TTL 623mm 648mm 673mm
Seat Tube Length  STL 419mm 445mm 482mm
Reach  R 476mm 501mm 526mm
Stack  S 636mm 636mm 636mm
Stand Over  SO 702mm  718mm  746mm 
Head Tube Angle  HTA 62° 62° 62°
Seat Tube Angle  STA 77° 77° 77°
Chain Stay Length  CSL 415mm 425mm 435mm
Bottom Bracket Height  BBH 29" - 320mm   //   27.5x3.0" - 317mm   //   27.5x2.8" - 315mm
Head Tube Length  HTL 95mm  105mm  105mm 
Fork Offset  FO 42/51mm  42/51mm  42/51mm 
Wheelbase  WB 1238mm  1273mm  1308mm 
Seatpost Size 31.6mm
Seatclamp Size 35mm
Headset Size 44mm-56mm tapered
BB Shell BB92 (press fit)
Rear Axle 184mm, M12 x 1.75mm (Boost 148 Spacing) - Included
*measured with a 180mm fork. Optimal 160-180mm. Measurements in mm.

Builds

PARTSGX EAGLE BUILDEAGLE XO1 BUILD
FORK Rock Shox LYRIK RC 180 SA
Boost 110x15mm
Rock Shox LYRIK RC 180 SA
Boost 110x15mm
STEM Chromag HiFi 40mm Chromag HiFi 40mm
HANDLEBAR Fubars OSX 25mm Rise Fubars OSX 25mm Rise
HEADSET Cane Creek Forty ZS Cane Creek Forty ZS
CRANK SRAM GX-1400 1x X-SYNC SRAM X1 EAGLE Carbon
BRAKES SRAM Guide RS B1 SRAM Guide RSC B1
ROTORS 180mm Centreline 180mm Centreline
SHIFTERS SRAM GX 12 SPD SRAM X01 EAGLE
CASSETTE SRAM XG-1275 SRAM XG-1295 EAGLE 10-50
REAR DERAILLEUR SRAM GX 1X12 SRAM X01 EAGLE 1X12
WHEELSET CHROMAG BA30 Rims with CHROMAG MAGNA Hubs 27.5+ or 29 CHROMAG BA30 Rims with CHROMAG MAGNA Hubs 27.5+ or 29
TIRES Maxxis Minion Fr/Minion Rr Maxxis Minion Fr/Minion Rr
SEATPOST Chromag Dolomite Chromag Dolomite
SADDLE Chromag Trailmaster DT Chromag Trailmaster DT
GRIPS Chromag Squarewave Chromag Squarewave
CHAIN SRAM GX EAGLE X01 EAGLE 
PEDALS - -
PRICE $4,999 CAD
$4,300 USD*
$6,090 CAD
$5,250 USD*
FRAME ONLY $1,900 CAD
$1,650 USD*
 
  RockShox Reverb Seat Dropper optional.
*US pricing applies to all US and International purchases.

To purchase, please contact us directly. We are happy to answer all your questions about our bikes and products. Call: 604-905-6667 Email: info@chromagbikes.com