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Soma

Soma Fabrications, which gets its name from the San Francisco name of South of Market Street has become a favorite bike brand among those of us who want to build our own bike with high quality reasonably priced parts.

We love how Soma Steel frames ride. Rider after rider tell us how no matter how many higher end bikes they have in their garage, they always grab their Soma when they go out on their favorite rides.

We love their beautifully simple paint jobs, minimalist graphics, and more importantly the flexibility that their frames provide

We love them so much that we build up a number of Custom Soma Bikes that are high end commuter bikes, thoughtfully made touring bikes, cyclocross bikes and belt drive bikes that make our souls purr.

$2,188.00
The Buena Vista Disc is a perennial favorite among our custom-build customers. Please get in touch to discuss your dream build. We built this beautiful mixte frame up with a Velo Orange triple touring cranket, dynamo lighting system, semi-sweptback handlebars, and Brooks saddle. Custom assembled in house. We can ship this model. No sales tax other than the $15 Oregon Bike Tax.
$1,149.99
Extra large diameter, thin-wall Tange Prestige chromoly coupled with modern touches like thru-axles and compact geometry give this frame increased power transfer and road feel while still delivering a composed and plush ride at all speeds. The re-designed geometry combines a comfortable higher stack with a shorter wheelbase that rewards skillful riders. - Tange Prestige heat-treated double-butted CrMo steel - Extra oversized down tube and chainstays for greater pedaling stiffness - Ovalized top tube for increased lateral stiffness and vertical compliance - Size-specific tubing (Larger diameter down tubes on the larger sizes) - Replaceable modular dropouts (12 x 142mm bolt-on thru-axle, fits flat mount disc brake) - BSA threaded bottom bracket shell - Rear rack and fender mounts - Max tire size: 700x32c with fenders - Two water bottle boss sets - Seat collar: 29.8 or 30.0mm - Fork features: Carbon fiber, 43mm rake (48mm on size 48 and 52cm). Fits 700x32 tires with fenders. 12 x 100mm QR thru-axle, flat mount brake compatible. Tapered alloy steerer with internal cable routing.
$999.95
A true mixte frame with the double top tube/stays. Obviously offers lots of standover height and style as well. You'll find the geometry is more sporty than upright-comfy. Though it can be built up to suit either demeanor. Drop bars? Sure. Townie bars? Of course. This version is updated for disc brakes. This not only improves wet weather braking but allows it to fit wider, more sure-footed tires. - Provides a great foundation for a premium townie or commuter with sport touring geometry - 650b conversions are possible and encouraged - Tange Prestige heat-treated butted CrMo steel - Tange sliding dropouts allow for geared or single-speed drivetrains - Rear hub spacing: 135mm QR with International Standard disc brake mounts - Clearance for 700x38c tires with fenders - Includes color-matched lugged fork - 5.0lbs (54cm)
$799.99
The original inspiration for the Wolverine was “monster cross”, but it is seriously so much more. Its geometry is stable enough for off road touring, but sporty enough for all-around adventure. 2023 brings us the 4.1 A-Type update which adopts the flat mount disc standard on the frame and optional CrMo fork. The A-Type has more modern standards than the B-Type, such as 142mm rear thru-axle and a 44mm headtube that will fit 1-1/8 straight steerer or tapered steerer forks with the proper headset type. There is NO frame break for Belt-Drive on the A-Type Wolverine. (See chart in photo gallery for other differences between A and B) - IRD Broski sliding dropouts let you run gears or a single speed set up with better durability and less wheel slippage - Tange Prestige heat-treated CrMo tubes for the front triangle, butted CrMo rear end - Internal anti-rust coating protects against rust - Braze-ons for rear rack and fenders (disc brake-compatible racks only) - Rear hub spacing: 12x142mm TA with flat mount disc brake - Clearance for 700x45c tires with fenders - Three sets of water bottle bosses - 44mm ID headtube: (Use ZS44/28.6-ZS44/30 headset for 1-1/8" steerers) (Use ZS44/28.6 -EC44/40 headsets for 1-1/8"-1-1/2" tapered steerers) - Matching thru-axle fork sold separately—SF3426
$795.95
The Jawbone A-Type frame is the perfect platform to build drop bar mountain touring and bike packing rig. While it is still game for riding gravel and singletrack, it is in its element when packed up for your next adventure. - Tange Prestige heat-treated butted CrMo steel; butted CrMo rear end - Flat mount disc brake tabs on rear - Investment cast vertical dropout with replaceable stainless steel hanger. 12 x 142mm thru-axle - Front derailleur compatible (bottom pull) - Headset for optional 1-1/8" matching fork: SHIS: ZS44/28.6 | ZS44/30. If running a tapered steerer fork, get an EC44 lower cup - Rear rack and fender eyelets - Two sets of bottle cage bosses; one set of cargo cage bosses on downtube - 44mm headtube: Fits 1-1/8" steerer tubes and tapered steerer tubes with a headset swap - 27.2mm post size/28.6mm frt. der. size/29.8mm seat collar, 73mm bottom bracket (English threads) - Tire Width Range: 27.5 x 47mm to 2.5" / 700c x 38mm to 29 x 2.25" - For matching fork please considerYC4022
$769.95
The Jawbone B-Type frame is a versatile platform to build drop bar mountain touring and bike packing rig. While it is still game for riding your favorite trail loop it it is its element when loaded up. The B-Type version is for rider who may still prefer the familiarity of 100/135mm QR hubs, but appreciates extra features like sliding dropouts and a tons of mounting bosses. - Tange Prestige heat-treated butted CrMo steel; butted CrMo rear end - IRD Broski Sliding Dropouts allows for running derailleurs as well as geared hubs like Rohloff (Stock dropout insert is for 135mm QR. 142 x 12mm Thru-Axle inserts available separately, SF4958, SF4959. SF4960-142x12mm axle ) - IS mount disc brake tabs - Front derailleur compatible (bottom pull) - Headset for optional 1-1/8" matching fork: SHIS: ZS44/28.6 | ZS44/30. If running a tapered steerer fork, get an EC44 lower cup - Rear rack and fender eyelets - Two sets of bottle cage bosses; one set of cargo cage bosses on downtube - 44mm headtube: Fits 1-1/8" steerer tubes and tapered steerer tubes with a headset swap - 27.2mm post size/28.6mm frt. der. size/29.8mm seat collar, 73mm bottom bracket (English threads) - Tire Width Range: 27.5 x 47mm to 2.6" / 700c x 38mm to 29 x 2.25" - For matching fork please considerSF4030
$580.00 - $679.99
We've done hundreds of Wolverine custom builds in the past 5 years. Let's talk about yours--drop us a line or give us a shout. The original inspiration for the Wolverine was “monster cross”, but it is seriously so much more. Its geometry is stable enough for off road touring, but sporty enough for all-around adventure. With its sliding dropouts, you can turn it into a single-speed CX bike. With a split seatstay, it is compatible with the Gates Carbon Belt Drive. The primary differences between the V3 and V4 Type-B is that the latter has a third set of bottle bosses plus additional stack height on most sizes.There's also a new size, 46 cm. Wolverine v.4 Type A is not belt-compatible. See chart for their differences. The Type-A also adopts modern standards such as 142mm rear thru-axle and a 44mm headtube that will fit 1-1/8 straight steerer or tapered steerer with the proper headset type. There is NO frame break for Belt-Drive like the B-Type has. (See chart for other differences between A and B) - Tange Prestige heat-treated CrMo tube set - Clearance for 700x45c tires w/ fenders - Rear hub spacing/type: 142 x12mm Thru-Axle - IRD Broski sliding dropouts allow for geared or single-speed builds - Optional Matching Fork: Unicrown straight blade 15mm thru-axle fork with cage bosses (1-1/8”) (No lugged crown fork offered for the Type-A) - Braze-ons for rear rack and fenders (disc brake-compatible racks only) - Three sets of water bottle bosses - 44mm headtube (Use ZS44/28.6-ZS44/30 headset for 1-1/8” steerers) (Use ZS44/28.6 -EC44/40 headsets for 1-1/8”-1-1/2” steerers) - Sizes: 46, 50, 52, 54, 56, 58. 60, 62 and 66cm (We recommend 650b tires on the 46cm) - 4.79 lbs (frame) - Paint: Storm Blue Type B features: - Tange Prestige heat-treated CrMo front triangle; butted CrMo rear end - Clearance for 700x45c tires w/ fenders - Rear hub spacing:135mm (10mm QR, can be upgraded to 142mm 12mm TA with different inserts ) - Gates Carbon belt drive compatible - IRD Broski sliding dropouts allow for geared or single-speed builds Optional Matching Forks: A) lugged flat crown standard QR axle, Tange Infinity CrMo steel fork; double eyelets pannier rack and mini rack mounts. B) Unicrown straight blade 15mm thru-axle fork - Braze-ons for rear rack and fenders (disc brake-compatible racks only) - Three sets of water bottle bosses - 1-1/8” size headtube - Sizes: 46, 50, 52, 54, 56, 58. 60, 62 and 66cm (We recommend 650b tires on the 46cm) - 4.79 lbs (frame); - Paint: Moss Green
$649.99
A great do-all frame. Ready for CX, trail-riding, long road rides, commuting, and medium-duty loaded touring. Comes in a wide range of sizes to fit you right -- up to 66cm! For the latest version, we have tweaked the geometry to make it an even better all-rounder. Slacker headtube angle for less twitchy handling in gravel and off-road descents. Lower bottom bracket height for more on-road stability loaded or unloaded. Improved mud clearance for 650b x 47mm tires - Updated geometry with a slightly shorter top tube and taller head tube in some sizes - Double rear rack and fender mounts and clearance for 38c tires with fenders - Extra tall head tube reduces the need for headset spacers - Rear hub spacing: 135mm QR with International Standard disc brake mounts - Redesigned disc mount area for improved brake clearance - Electrophoretic deposition coated to protect against rust - Soma disc Cross fork sold separately, use SF3029
$599.95
The version 2.0 of the Riff offers practical updates in features and geometry without going all-in with progressive geometry that almost everyone in chasing. We wanted to keep this frame a hardtail that's great for bike packing and familiar-feeling on long days in the saddle on rolling terrain. There is a slightly steeper seat angle for more efficient climbing and shorter seat tubes to benefit dropper posts. Tough Broski Sliding Dropouts allow you to run single-speed, geared or even hub gears. Rear hub spacing in updated to Boost 148 . A modified chainstay allows fitting even some double cranks with “plus size” 2.8? wide. - ED coating inside frame and under the paint increase rust resistance - Boost 148mm rear hub spacing - Geometry is optimized for 120mm forks. Will work well with a 100mm fork, too. - Tange Prestige heat-treated butted CrMo steel; butted CrMo rear end - ISO disc brake tabs - IRD Broski Sliding Dropouts - S-bend seat stays and chainstays - Rear rack and fender eyelets - Dropper post cable routing runs on downtube and inside the seat tube - 34.9mm seat collar(not included), 400mm post recommended - CNC-machined 44mm headtube: Will fit 1-1/8" steerers with a ZeroStack 44 headset or fit tapered steerers with a ZS44 upper assembly and external cup (EC44) lower assembly - Recommended tire size: 27.5 x 1.95" ‚Äi 2.8" - Only the Large size frame comes with bottle mounts on the seat tube - 5.7 lbs (XS)
$529.00
New Soma Fog Cutter Frame Endurance road disc frame that can fit tires up to 700x40mm. - Fully heat-treated Tange Prestige CrMo steel - Road sport geometry - Rear rack & fender mounts - International disc mounts (rear mount is located on the chainstay for stiffer performance and also keeps the caliper out of the way of rear racks) - Available matching straight blade carbon fork (order 23316/43mm for frames 54cm and up; order 23317/48mm rake for frame 48-51cm - 1-1/8" size headtube - 27.2mm post size - 6 sizes: 48, 51, 54, 56, 58, 61cm - Rosso Red Want a complete Fog Cutter? Check out our "Pinchot" House gravel build.
$289.99
- Tange Infinity CrMo steel fork for 27.5 (650b) or 29 MTB wheels - Suspension corrected for 100mm travel 29er frames or 120-130mm 650b frames - Unicrown with straight D-shaped blades International Standard disc mount - 47mm rake - Mini Rack Mounts
$279.99
A tough unicrown fork option for the Soma Wolverine and other gravel/CX frames with a 1-1/8" headtube. Version 3 model has a new fork end design and adopts the flat mount disc standard - Unicrown design with Tange Infinity CrMo steel tubing - Triple bosses on fork leg to fit low rider pannier rack or cage - Fits 700c x 45mm tires with fenders
$269.99
Matching fork for the Soma Jawbone B-Type frame. - Tange CrMo steel - Fits QR hubs - Axle to Crown: 425mm - Rake: 50mm - IS disc mounts, rotor fit up to 180mm - Two sets of cargo cage bosses per leg, pannier rack bosses on inside and outside leg - Two sets of fender/rack eyelets at fork ends - 29" tire clearance: 2.25" - 27.5" tire clearance: 2.8" - 350mm Steerer Tube If you are getting this fork for the Jawbone, you need a ZS44 headset. Can be used as a rigid fork on some early 90's mountain bikes.
$259.99
- Unicrown design with Tange Infinity CrMo steel tubing - Single eyelets pannier rack mounts and mini rack mounts - Fits 700c x 45mm tires with fenders - 15x100mm thru axle and International Standard disc brake mount
$250.00
Soma Carbon Fork for Fog Cutter. Same maroon paint. Straight-blade carbon fork for the Soma Fog Cutter frame. Choose the 43mm rake version for frame sizes 54-61. Choose the 48mm rake version for frame sizes 48-51. - IS disc mount - 400mm axle to crown - 43mm or 48mm rake - 1-1/8" alloy steerer (300mm long) - 45mm max tire width - Weight: 775g - Does not have mid-blade mounts
$169.99 - $189.99
Laterally stiff and fine riding steel-lugged cross fork. Features a sloping lugged crown with cutouts on outside tangs, long inside tangs, and an International Standard disc tab. - Tange Infinity chromoly steel blades and steerer - Rack eyelets for fenders and braze-ons for low-rider panniers - 1 1/8" threadless steerer - 350mm long steerer - 44mm rake - 400mm axle to crown - 60mm inside width - Lugged Cross fork to match Double Cross Cyclocross frames - Lugged crown with Tange CrMo construction - Features eyelets for front rack and braze-ons for low-rider panniers
$189.99
- Premium Cyclocross fork with CrMo blades - 300mm steerer (uncut) 30.0mm race 44mm straight rake fork - Designed to match the Soma Double Cross disc frame - Designed for disc brakes, 160mm rotors (International mount) - Straight blade design with D-shaped cross-section blades - Tange Infinity CrMo steel - 350mm 1-1/8" steerer - 400mm axle to crown - Two sets of fork-tip eyelets - Low rider pannier rack eyelets - 60mm inside width
$185.90
- Tange Infinity CrMo steel fork for 27.5" (650b) or 29" MTB wheels - Suspension corrected for 100mm travel 29er frames or 120-130mm 650b frames - Unicrown with straight D-shaped blades
$179.99
- Tange Infinity CrMo steel uni-crown fork for 26 MTB wheels - Suspension corrected for 80mm travel 40mm rake - Cantilever brake studs with dropout eyelet - Fork tip double eyelets (updated 2022) - 440mm axle to crown length (ideal for frames designed for 26" wheel 80-85mm travel forks; will also work well with frames designed for 100mm travel fork and have head angles 70 and slacker) - 1-1/8 CrMo steerer (250mm) - 40mm rake
$179.99
- Tange Infinity CrMo steel unicrown fork for 26 MTB wheels - Suspension corrected for 80mm travel 26 frames 40mm rake - All have 51mm International Standard disc mount
$179.99
- Tange Infinity CrMo steel unicrown fork for 26 MTB wheels - Suspension corrected for 80mm travel 26 frames 40mm rake - All have 51mm International Standard disc mount
$169.99
- Tange Infinity CrMo steel blades with D-shaped cross-section - Fender eyelets at fork tips - Low rider pannier rack boess - Premium Cyclocross fork with CrMo blades - Choose disc or cantilever brake options - 300mm steerer (uncut) 30.0mm race 44mm straight rake fork - Designed to match the Soma Double Cross disc frame - Steerer 1-1/8" and 1", 350mm long, CrMo - Axle to crown 400mm - 44mm rake
$169.99
- Tange Infinity CrMo steel fork for 27.5 (650b) or 29 MTB wheels - Suspension corrected for 100mm travel 29er frames or 120-130mm 650b frames - Unicrown with straight D-shaped blades International Standard disc mount - 47mm rake
$140.00
The Demi Porteur Rack is a wide but compact rack that installs on your fork's mini rack mounts or via P-clamps (included). Ideal for supporting larger bar bags like an Ocean Air Docena or Ostrich F-702 or a wire basket - Aluminum construction - Platform: 26cm x 30cm - 10kg load capacity - Includes Manny Strap - Weight: 530g - Satin polish silver or Black - Made for us by the folks responsible for Tanaka Fenders. If installing to a braze-on, the braze-on needs to be about 140mm from the brake hole on the crown. If your braze-on is too low, you will need to install using P-clamps on the legs.
$90.00
- 6061-T12 aluminum with round, Compact bend and a shallow drop - easy to reach brake lever positioning - Drop: 130mm - Reach: 75mm
$75.00
• Vintage Italian racing profile • Synthetic leather cover with medium padding
$70.00
Great little aluminum rack. Perfect for strapping a Wald basket to, or on its own to support a handlebar bag. Stainless hardware, includes mounting tang and spacers so that you can clear the fork leg when you mount to the eyelets on the backside of your fork. Works well with a set of P-clamps as well (included). The Lucas 3 differs from the Lucas 1 in that we added a mid-fork mount for extra stability. - Round eyelets for strapping/zip-tying things on - Platform measures 240mm x 130mm - The eyelet to the bottom of the rack is 365mm. - Load capacity: 10kg/22 lbs. - Greyish silver or black - Weight: 570g
$60.00
- Drop bar designed with off road use in mind - Width of flats on top: 340mm - Grip area has a slight flare - Bar-end shifter compatible. 300g - Clamp: 31.8mm - Width: 56cm - Drop: 112mm - Reach: 65mm
$30.00
- Strong and simple precision-forged aluminum seatpost - One-bolt clamp design allows for a wide range of saddle angles with infinite intermediate adjustability
$21.90 - $23.90
- CNC-machined from hardened chromoly with phosphate black finish - Threaded track cog for 1.37"x24tpi (right handed) threads - Choose 3/32" or 1/8" widths (Use SF-1750 for lockring)
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