Soma Jawbone Frame A-Type

• The Jawbone A-Type frame is the perfect platform to build drop bar mountain touring and bike packing rig
• Tange Prestige heattreated 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 thruaxle
• Front derailleur compatible (bottom pull)
• Headset for optional 11/8" 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 11/8" 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

Free bike shipping within the lower 48 states. Easy returns within 30 days.

Our rider support team can help with fit, setup, and the finer details.