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Soma Fabrications

Adventure
Touring
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Mountain

Frames

Frames
Soma Fabrications

Adventure
Touring
Gravel
Cross
Road
Race
Dirt
Mountain

The first mountain bikes were made out of steel, but that is not why we decided to make these. We chose steel because it offers the best combination of value, comfort, and resiliency of all the popular frame materials. Hardly any folks these days buy a steel frame as their first mountain bike. It's those who've ridden a while and have tried aluminum and full suspension -- who come a knockin'. We do 29ers, 26ers, and 650B'ers.

5 products

Soma Fabrications

Fog Cutter

Regular price R 14,200.00 Save Liquid error (product-template line 117): Computation results to '-Infinity'%

The Fog Cutter is an endurance road/road sport design. We designed it to fit fatter tires, but its geometry makes it handle like a road bike rather than CX or gravel bike. It can float you over chewed up asphalt better than most bikes in this category. This is the frame you want for grand fondos, long days in the saddle and the most demanding commutes.

• Tange Prestige double butted CrMo steel tubing; heat treated throughout

• Road sport geometry

• Rear rack & fender mounts

• Tange Modular dropouts. Stock setup is for 142mm thru-axle hubs and flat mount disc brakes. Alternative styles available thru Tange/Long Shen.

• Fork options: Matching straight blade carbon fork (alloy steerer, flat mount, 12 x 100 thru-axle hub) or lugged CrMo steel fork (CrMo steerer, IS disc mount, QR hub)

• Tire clearance for 700c x38mm with fenders (some front derailleurs will limit tire clearance) and 650b x 42mm

• Fits 1-1/8" headset (EC34/28.6|EC34/30 headsets)

- 27.2mm post size

- 7 sizes: 48, 51, 54, 56, 58, 61 and 66cm

- Weight: 4.25 lbs (48cm); 4.5 lbs. (58cm)

- Paint: Cerulean Blue

Soma Fabrications

Soma Frame Riff Blue (Standard)

Regular price R 13,999.00 Save Liquid error (product-template line 117): Computation results to '-Infinity'%

The Riff is our hardtail frame for 27.5″/650b wheels. It replaces the B-Side model. While the B-Side showed our tendency of keeping things old school, the Riff is modern without being trendy with the geometry and features. Tough Broski Sliding Dropouts allow you to go single-speed or geared or even run hub gears. Compatible with 12x142mm thru-axle hubs . A modified chainstay allows fitting even some double cranks with “plus size” 2.8″ wide tires without needing to invest in Boost parts. We even offer a belt-drive ready version.

– Tange Prestige heat-treated butted CrMo steel; butted CrMo rear end

– Geometry is optimized for 100mm travel 27.5″ forks and will handle 120mm forks great too

– Disc brakes only (ISO tabs)

– Standard or Belt-Drive compatible versions available (split for installing belt is on the seatstay.)

– IRD Broski Sliding Dropouts allows geared and single-speed builds with easy wheel removal

– S-bend seatstays and chainstays

– Rear rack and fender eyelets

– CNC-machined 44mm headtube: Will take 1-1/8″ steerers with a ZeroStack 44 headset or tapered steerers with a ZS44 upper assembly and external cup (EC44) lower assembly

– 31.6mm post size/34.9mm frt. der. size/34.9mm seat collar(not included), 400mm(or longer) post recommended.

– Dropper post cable routing runs on downtube and inside the seat tube

– 73mm bottom bracket (English threads);

– In 2021 these come ready for 142 x 12mm Thru-Axle hubs. (Can be converted to 135mm spacing for traditional QR hubs with IRD aftermarket inserts)

– Recommended tire size: 27.5 x 1.95″ – 2.8”

– Color: Pelham Blue

– Wt: 5.35 lbs.

– Sizes: XS(38cm), SM(41cm), MD(44cm), LG(47cm)

Soma Fabrications

Juice trail/XC 29er Frame

Regular price R 16,800.00 Save Liquid error (product-template line 117): Computation results to '-Infinity'%

The Juice is our trail/XC hardtail frame for 29″ wheels. This updated version features tough Broski Sliding Dropouts that allow you to go single-speed or geared or even run hub gears and slightly more modern geometry. Also new is internal seat tube dropper post routing. A modified chainstay allows fitting even some double cranks with “plus size” 2.8″ wide tires without needing to invest in Boost parts. We even offer a belt-drive ready version if you want to run a Gate Carbon Drive.

– Tange Prestige heat-treated butted CrMo steel; butted CrMo rear end– Geometry is optimized for 100mm travel 29″ forks and will handle 120mm forks great, too– Disc brakes only (ISO tabs)– Standard or Belt-Drive compatible versions available (split for installing belt is on the seatstay.)– IRD Broski Sliding Dropouts allows geared and single-speed builds with easy wheel removal– S-bend seatstays and chainstays– Rear rack and fender eyelets– CNC-machined 44mm headtube: Will take 1-1/8″ steerers with a ZeroStack 44 headset or tapered steerers with a ZS44 upper assembly and external cup (EC44) lower assembly– 31.6mm post size/34.9mm frt. der. size/34.9mm seat collar/73mm bottom bracket (English threads); 400mm+ post recommended– 135mm spacing for traditional QR hubs. Old school, yes, but upgradable to 142 x 12mm Thru-Axle with new inserts.– Recommended tire size: 29″ x 2.4″ (or 27.5 x 2.8”)– Color: Battleship Gray– Wt: 5.35 lbs.– Sizes: SM(41cm), MD(44cm), LG(47cm), XL(50cm)

Soma Fabrications

Wolverine B-Type

Regular price R 16,500.00 Save Liquid error (product-template line 117): Computation results to '-Infinity'%

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 3.0 and v. 4 Type-B is a new 46cm size, an extra set of water bottle bosses, and additional stack height on most sizes.
(Also check out the Wolverine v.4 Type-A! See chart for their differences)

- Tange Prestige butted and heat-treated CrMo front and rear triangle
- 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 (#23280) with double eyelets pannier rack and mini rack mounts.
B) Unicrown straight blade 15mm thru-axle fork(available in July)
- 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

Soma Fabrications

Wolverine A-Type

Regular price R 16,999.00 Save Liquid error (product-template line 117): Computation results to '-Infinity'%

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.
The primary differences between the version 3.0 Wolverine and the v. 4 Type-A and B is a new 46cm size, an extra set of water bottle bosses, and additional stack height on most sizes.The Type-A ALSO adopts more 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. NO frame break for Belt-Drive. (See chart for other differences between A and B)

- Tange Prestige heat-treated double butted CrMo front and rear triangle
- 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-B
- 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” tapered steerers)
- Sizes: 46, 50, 52, 54, 56, 58. 60, 62 and 66cm (We recommend 650b tires on the 46cm)
- 4.79 lbs (frame); 2.3 lbs. (fork, uncut steerer)
- Paint: Storm Blue