Surface 27.5+" / 29"

Never wonder if you have the right bike

Big wheels, all mountain

The Surface features longer front end per sizing, slacker head angle, steeper seattube, shorter chainstays, and bb height adjusted for longer travel (150mm). We are now using 148 boost rear axle spacing and a new ‘yokel’ layout for increased tire clearance. The Surface is a 29er but will also accept 27.5+ tires up to 2.8” or possibly more.

WEIGHT

5.9 lbs (Medium, Frame Only)

TIRE SIZE

29 x 2.5” or 27.5 x 2.8”

TRAVEL

Design optimized for a 150mm fork

REAR SPACING

12x148 Boost

MATERIAL

Chromag custom 4130 chromoly steel alloy, drawn to our own specifications for each model.

Features

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.

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 2017 models (excluding Monk and Nice Dreams) will follow the 148mm boost spacing.

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

 SMM/LLXL
Typical Rider Height 5'2"-5'7 5'5"-5'10 5'8"-6'2" 6'-6'4" 6'3"-6'7"
Top Tube Length (Effective)  TTL 578mm 605mm 622mm 648mm 667mm
Seat Tube Length  STL 394mm 431mm 470mm 495mm 533mm
Reach  R 415mm 434mm 453mm 479mm 504mm
Stack  S 647mm 647mm 647mm 647mm 647mm
Stand Over  SO 700mm  722mm 757mm  782mm  817mm 
Head Tube Angle  HTA 66° 66° 66° 66° 66°
Seat Tube Angle  STA 75° 75° 75° 75° 75°
Chain Stay Length  CSL 425mm 425mm 425mm 425mm 425mm
Bottom Bracket Height  BBH 320mm 320mm 320mm 320mm 320mm
Head Tube Length  HTL 115mm 115mm 115mm 115mm 115mm
Fork Offset  FO 51mm 51mm  51mm  51mm  51mm 
Wheelbase  WB  1147mm 1174mm  1193mm  1218mm  1244mm 
Seatpost Size 31.6mm with Stealth Routing
Seatclamp Size 35mm
Headset Size 44mm-56mm tapered
BB Shell 73mm threaded
*Measured with a 150mm fork. Optimal 130-150mm. Measurements in mm.

Builds

PARTSEAGLE BUILDEAGLE XO1 BUILD
FORK Rock Shox Lyrik SA 150 Rock Shox Lyrik SA 150
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 PHASE30 Rims with CHROMAG MAGNA Hubs 27.5+ or 29 CHROMAG PHASE30 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 $4,900 CAD
$4,250 USD*
$5,950 CAD
$5,150 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