Source Expert Disc Step-Through
Part No.  

Source Expert Disc Step-Through

Part No.  
A true multi-tasker for anything from commuting to a loaded weekend camping trek down the coast, the Source Expert Disc does it all anytime, anywhere. Equipped with disc brakes and integrated lights, rack, and fenders, this step-through frame adds convenience, plus the 2x10 FSA/SRAM Apex drivetrain means light weight and flawless shifting.
  • SRAM Apex 2x10 drivetrain with 11-32t cassette and FSA compact crank for the latest in lightweight, wide-range gearing and spot-on shifting every time
  • Sturdy alloy fork with Cr-Mo steerer and fender/rack mounts and internal light cable routing for the ultimate multi-purpose bike
  • Strong, reliable Avid hydraulic disc brakes for sure stopping and control in any weather with any load
  • All-new, super light E5 fully-manipulated alloy frame is built for high speed, low-fuss, and great versatility, with tapered head tube, internal routing, rack/fender mounts, and center kickstand attachment
  • Body Geometry Contour gel grips lock on and help alleviate hand pain and tingling fingers, compatible with integrated bar ends for changing hand position
  • Supernova E3 Pro headlight supplies over 300 lumens of light, plus a minimal but superbright taillight to keep you safe on the road anytime, both powered with a on/off switchable Supernova Infinity 8 hubdynamo
  • Supernova Infinity 8 hub-dynamo is superlight and can be switched off for a drag free option
  • Super light and compact Racktime Ultra hollow alloy rack lets you carry supplies without adding a lot of bulk, max load 10kg

Technical Specifications

BOTTOM BRACKET GXP, external bearing
CRANKSET FSA Omega, 48/34, w/chainguard
SHIFT LEVERS SRAM S700 flat bar, 10-speed
CASSETTE SRAM 1050, 10-speed, 11-32t
CHAINRINGS 48/34, alloy outer ring, w/chainguard
FORK Aluminum legs/crown, Cr-Mo steerer, 52mm fully integrated headset, fender/rack eyelets, internal light cable routing
FRONT HUB Supernova Infinity 8 dynamo hub, Freespin technology switchable drag, QR
REAR HUB Forged alloy, sealed, cassette, QR, 32h
INNER TUBES Presta Valve
SPOKES Stainless, 2mm
FRONT TIRE Specialized Espoir Sport Reflect w/ double BlackBelt, 60 TPI, wire bead, 700x30c
RIMS DRX300 Disc, alloy double-wall, sleeved, CNC machined, 32h
REAR TIRE Specialized Espoir Sport Reflect w/ double BlackBelt, 60 TPI, wire bead, 700x30c
SADDLE Body Geometry Riva Comp, 155mm wide
SEATPOST Alloy, 2-bolt forged head, 27.2mm, 350mm
STEM Specialized Elite-Set, 3D forged alloy, 4-position adjustable, 4-bolt 31.8mm clamp
HANDLEBARS Specialized Expert flat bar, 2014 aluminum, 31.8mm
GRIPS Body Geometry Contour Women's, lock-on for bar ends
FRONT BRAKE Avid Trekking hydraulic disc, 160mm G2CS rotors
BRAKE LEVERS Avid Trekking hydraulic, 3-finger lever
REAR BRAKE Avid Trekking hydraulic disc, 160mm G2CS rotors
PEDALS Sirrus pedal, nylon body, symmetric alloy cage, low profile bearing system, toe clip capable
HEADSET 1 1/8"" sealed Cr-Mo bearings integrated w/ headset, 20mm alloy cone spacer with 20mm of spacers
SEAT BINDER 31.8 clamp ID, superlight forged and machined alloy
FRAME Specialized E5 aluminum, fully manipulated tubing, smooth weld, compact design, inside rear triangle disc mount, internal cable routing, integrated headset, fender/rack eyelets, center kickstand plate


Geometry Chart

- Geometry

Crank Length 170mm 170mm 170mm
Stem Length 75mm 90mm 100mm
Handle-Bar Width 580mm 580mm 580mm
Wheelbase 1052mm 1053mm 1057mm
Seat-Tube Length, B-B Center to Top 395mm 440mm 475mm
Head-Tube Length 130mm 150mm 165mm
Top-Tube Length, Horizontal 535mm 550mm 565mm
Front-Center 616mm 617mm 622mm
Head-Tube Angle 70° 71° 71°
Stand-Over Height 619mm 628mm 628mm
Fork Rake 51mm 51mm 51mm
Trail 73mm 67mm 67mm
Chain-Stay Length 445mm 445mm 445mm
Seat-Tube Angle 74.5° 74° 73°
B-B Drop 70mm 70mm 70mm
Seat-Post Length 300mm 350mm 350mm