Arcturian Frame

$1,900   CAD

Our one and only 29+ frame! Based off the ever popular Primer and Rootdown geometry but with enough clearance for plus sized tires. 

  • Looking for the non + version? Check out the Primer.
Available at quality bicycle retailers across the globe.
To purchase this item please contact us or visit your local bike shop.

Due to the fact this item is custom painted, lead times may vary.
If you select a raw option, we'll be in touch about your paint job and delivery date once you complete checkout. Woo!

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

  L XL
Typical Rider Height 6'-6'4" 6'3"-6'7"
Top Tube Length (Effective)  TTL 654mm 678mm
Seat Tube Length  STL 462mm 490mm
Reach  R 501mm 526mm
Stack  S 661mm
Stand Over  SO 758mm  767mm 
Head Tube Angle  HTA 64°
Seat Tube Angle  STA 77°
Chain Stay Length  CSL 438mm
Bottom Bracket Height  BBH 318mm
Head Tube Length  HTL 105mm
Wheelbase  WB 1275mm 1303mm
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 160mm fork. Optimal 140-160mm. Measurements in mm.
PARTS EAGLE GX BUILD EAGLE XO1 BUILD
FORK Rock Shox Yari 140 +
Boost 110x15mm
Rock Shox Pike 160 +
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 EAGLE 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 EAGLE 1X12 SRAM X01 EAGLE 1X12
WHEELSET CHROMAG MAGNA40 Rims with CHROMAG MAGNA Hubs 29+ CHROMAG MAGNE40 Rims with CHROMAG MAGNA Hubs 29+
TIRES Maxxis Minion Fr 3.0" Maxxis Minion Fr 3.0"
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 of your questions about our bikes and products.

Call: 604-905-6667

Email: info@chromagbikes.com

Your bike is special. The head tube badge is the finishing touch so we’ve always made a point of taking the time to do something interesting with it. Our head tube 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.

Chromag Head Tube Badge

 

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.

Chromag Yokel