"Before I found the Surface I’d tried a bunch of 29ers and although the benefits of the wheels were obvious often the bikes they were attached to felt a little too cross-country for my liking. I wanted a bike that I can race at the local midweek events, have a beer instead of washing it, then throw it in the back of my truck to go away for a weekend of epic, all-day rides with my buddies and never have to wonder if I have the right bike, no matter what trail we ride. I also want a bike built by Chris Dekerf because I know his heritage as a frame builder combined with the Chromag design philosophy and aesthetic."


Specs

Big wheels, all mountain

We focused our carefully honed design ideas on the big wheel platform and the result is the Surface. Slack at the front and short at the back, ready to rip and beyond awesome. 

  • Handmade in British Columbia, Canada by Chris Dekerf
  • Chromag Custom True Temper and Aircraft grade 4130 chromoly
  • Chromag's trail honed geometry
  • Chainstay length optimized at 16.7" / 425mm
  • Custom CNC machined dropouts for 12mm Maxle with replaceable hanger
  • CNC Machined Headtube Tapered 44-56mm
  • Design optimized for a 120 - 150mm fork
  • 31.6mm diameter seat tube with Stealth routing
  • 35mm seat collar
  • 29 x 2.5” or 27.5 x 2.8” tire clearance

Colours:

Metallic Black, Burnt Orange, Leaf Green, Hyper Blue. *Custom color options available


Features

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.

Head tube badges

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.

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.


Geometry

Chainstay 16.7" 425mm
Headtube 4.5" / 115mm
Head Angle 66.5°
Seattube Angle 75°
BB Height 12.6" / 320mm
Seatpost Size 31.6mm
Headset Size 44-56mm
Ft. Derailleur Size 34.9mm
BB Shell 73mm threaded

*measured with a 150mm fork.  Optimal 120-150mm.


Sizing

 SMM/LLXL
TYPICAL RIDER HEIGHT 5'2-5'7
156-170cm
5'5"-5'10
165-178cm
5'8"-6'2"
171-187cm
6'-6'4"
183-193cm
6'3-6'7
190-199cm
TOPTUBE LENGTH (EFFECTIVE) 22.75"
578mm
23.75"
603mm
24.5"
622mm
25.5"
648mm
26.25"
667mm
SEATTUBE LENGTH (C-TOP) 15.5"
394mm
17"
431mm
18.5"
470mm
19.5"
495mm
21"
533mm
REACH 410mm 434mm 453mm 479mm 498mm
STACK 647mm 647mm 647mm 647mm 647mm

Complete Builds

PARTSGX BUILDEAGLE BUILD
FORK Rock Shox PIKE RC BOOST 140 SA Rock Shox PIKE RC BOOST 140 SA
STEM Chromag HiFi 40mm Chromag HiFi 40mm
HANDLEBAR Fubars OSX 25mm Rise Fubars OSX 25mm Rise
HEADSET Cane Creek 40 ZS Cane Creek 40 ZS
CRANK SRAM GX-1400 1x X-SYNC X01 EAGLE
BRAKES SRAM Guide RS B1 SRAM Guide RSC B1
ROTORS 180mm Centreline 180mm Centreline
SHIFTERS SRAM GX 11 SPD X01 EAGLE TRIGGER
CASSETTE SRAM XG-1175 FULL PIN SRAM XG-1195 X-DOME
REAR DERAILLEUR SRAM XG-1175 FULL PIN XG-1295 EAGLE 10-50
WHEELSET Stans Flow S1 on Stans NEO hub. Stans Flow MK3 on HOPE Evo 4 Hubs
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 Basis Chromag Basis
CHAIN SRAM 1170 X01 EAGLE Chain
PEDALS - -
PRICE $4,450 $5,450
FRAME ONLY $1,725 $1,725
  RockShox Reverb Seat Dropper optional.
Prices are in Canadian Dollars. For US and International pricing please contact us.

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