Browsing Bikes, Frames & Frame Parts from Soma

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Frames
Soma Jawbone Frame A-Type
Margin Booster
  • The Jawbone A-Type frame is the perfect platform to build drop bar mountain touring and bike packing rig
  • 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 consider YC4022
  
item # model size seat tube (c-t) top tube (effective, c-c) chainstay head angle seat angle bottom bracket seatpost front derail wheel size dropout color in stock?
  SF4000    Oversized item:
expedited shipping
not available.
Incurs a shipping
surcharge of $15.00
per unit.   		Jawbone A-Type 52cm 450mm 539mm 445mm 70.5 deg 73.8 deg 73mm 27.2mm 28.6mm 27.5" 12x142mm TA sage green NO
  SF4001    Oversized item:
expedited shipping
not available.
Incurs a shipping
surcharge of $15.00
per unit.   		Jawbone A-Type 54cm 515mm 553mm 445mm 70.5 deg 73.5 deg 73mm 27.2mm 28.6mm 29" 12x142mm TA sage green NO
  SF4002    Oversized item:
expedited shipping
not available.
Incurs a shipping
surcharge of $15.00
per unit.   		Jawbone A-Type 56cm 525mm 569mm 445mm 70.5 deg 73 deg 73mm 27.2mm 28.6mm 29" 12x142mm TA sage green NO
  SF4003    Oversized item:
expedited shipping
not available.
Incurs a shipping
surcharge of $15.00
per unit.   		Jawbone A-Type 58cm 545mm 583mm 445mm 71 deg 73 deg 73mm 27.2mm 28.6mm 29" 12x142mm TA sage green NO
  SF4004    Oversized item:
expedited shipping
not available.
Incurs a shipping
surcharge of $15.00
per unit.   		Jawbone A-Type 61cm 580mm 600mm 445mm 71.5 deg 73 deg 73mm 27.2mm 28.6mm 29" 12x142mm TA sage green YES
Frame Hangers & Parts