"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."
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
- Chromag Custom True Temper and Aircraft grade 4130 chromoly
- Chromag's own trail honed geometry
- Chainstay length optimized at 16.9" / 429mm
- Custom CNC machined dropouts
- Chromag modular dropout system for 10x135mm or 12x142mm
- Chromag’s own removeable ISCG tabs
- 44-millimetre head tube accepts tapered steerer forks
- Designed around a 140mm-travel fork
- 31.6mm diameter seat tube. Stealth routing
- 35mm seat collar
- 2.4-inch tire clearance
This bike is a reflection of you, so choosing your own colour is part of the package. Whatever you decide, we will make it happen. Different finishes and effects are available for additional cost. Call us for details.
We introduced our modular dropout in 2013 in order to accommodate both 10 x 135 and 12 x 142 hub interfaces. Our system interlocks and uses 6mm bolts for durability and longevity. It has proven extremely reliable and the convenience of being able to adapt to hub types adds a degree of future-proof to our bikes.
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.
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.
ISCG tabs are not as necessary for all bikes as they once were but many of our bikes feature our CNC’d 2piece design which is light, and can be removed when not used.
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.
|Headtube||4.13" / 105mm|
|BB Height||12.9" / 327mm|
|Ft. Deraileur Size||34.9mm|
|BB Shell||73mm (68mm pre Jan 2013)|
|*Optimized for a fork with 140mm travel|
|TYPICAL RIDER HEIGHT||5'2-5'7
156 - 170cm
165 - 178cm
|5'8" - 6'2"
171 - 187cm
|6' - 6'4
183 - 193cm
|6'3 - 6'7
|TOPTUBE LENGTH (EFFECTIVE)||22.25"
|SEATTUBE LENGTH (C-TOP)||15.5"
|Part||10 Speed||11 Speed|
|FORK||Rock Shox PIKE RCT3 140mm Solo Air||Rock Shox PIKE RCT3 140mm Solo Air|
|STEM||Chromag Ranger 60mm||Chromag Ranger 60mm|
|HANDLEBAR||Fubars OSX||Fubars OSX|
|HEADSET||Cane Creek 40||Cane Creek 40|
|BRAKES||SRAM Guide RS||SRAM Guide RSC|
|ROTORS||180mm Centreline||180mm Centreline|
|SHIFTERS||SRAM X9||SRAM X1|
|CASSETTE||SRAM 1050 11-36t||SRAM 1195|
|FRONT DERAILLEUR||SRAM XO||-|
|REAR DERAILLEUR||SRAM X9 clutch||SRAM X1|
|WHEELSET||Stans Flow EX. HOPE Hubs||Stans Flow EX. HOPE Hubs|
|TIRES||Schwalbe or Maxxis||Schwalbe or Maxxis|
|SEATPOST||Chromag Dolomite||Chromag Dolomite|
|SADDLE||Chromag Trailmaster DT||Chromag Trailmaster DT|
|GRIPS||Chromag Basis||Chromag Basis|
|CHAIN||SRAM 1071||SRAM 1170|
To purchase, please contact us directly. We are happy to answer all your questions about our bikes and products.