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Jamis Xenith Pro Di2 (2013)

General

Product Category
Brand Jamis
ModelXenith Pro Di2
Size48, 51, 54, 56, 58, 61
ColorGloss Carbon/ Stainless

Specific

Bottom bracketFSA PressFit 30 with Wheels MFG adaptors
BrakesShimano BR561 Super SLR dual pivot calipers with cartridge pads
CassetteShimano 10-Speed 11-25T
ChainShimano 10-Speed
CranksetShimano Ultegra FC-6750 compact double, 50/34T, 170mm (48/51), 172.5mm (54/56), 175mm (58/61)
FeaturesBorn from the same molds as our SL and Team, sharing many of the same design features, constructed with our lightweight-but-durable Omniad T700 lay-up. The Xenith's Tri-Oval SST differential tubing diameters (larger diameters on larger frames, smaller diameters on smaller frames) support big riders without punishing smaller ones. Designing the fork to incorporate a 1.5" crown race allowed us to produce a full-hollow fork, from steerer tube through crown and down to the dropouts: it's not just lighter, it's stronger! Our SST seatstays run full length from dropout to seat tube increasing lateral stiffness while offering greater vertical compliance than standard larger diameter monostays. Our forged one-piece dropouts, with replaceable derailleur hanger, offer greater strength and reliability than the industry-standard bolted & glued dropouts. Xenith's "muscle" shaped chainstays are asymmetrical, with the driveside 10% larger than the non-driveside, yielding 30% more volume & stiffness to offset drivetrain torque. The Xenith offers a 2 in 1 derailleur compatibility kit that will work with both mechanical cables or Di2 wires Our front derailleur clamp spreads shifting forces around the tube instead of localizing them at one point as would the more standard rivet-on front derailleur perch. The top of the Xenith seat tube is slotted twice on each side to spread clamp torque around the tube, and seat posts are securely clamped with a lightweight 1-bolt 7075 seat clamp The larger 46mm bore diameter of the Press Fit 30 BB system increases ply compaction yielding a lighter frame with increased frame strength. The key difference with Press Fit 30 is how the bearings are fitted into the frame. Bearings are housed in nylon cups that are pressed into the frame's bottom bracket shell. Like BB30, Press Fit 30 uses the same bearing that is designed for a 30mm spindle cranksets. Advantages of Press Fit 30: Improved bearing-to-shell interface, greater bearing durability and simple installation. One of the most revolutionary shifting advancements in the industry is now available at the Ultegra level. The increased accuracy, smoothness and reliability of electronic shifting allows the rider to shift under load while the Electronic Intelligent System calibrates the most optimal point in the rotation of the cassette and chainring making the perfect shift. Shimano's RS10 wheelset is packed with a 24mm aero rim, 3 mm offset asymmetric rear rim with straight pull double butted bladed spokes and a wide flange spacing that provides lateral support for superior strength and durability in real world riding conditions Shimano's Ultegra compact 50/34T crank with Press Fit 30 and Wheels MFG adaptors take full advantage of the oversized BB shell, larger BB30 bearings while keeping a full Shimano group for better shifting. The compact chainring concept is revolutionary: a 34T inner chainring offers a 15% lower gear ratio than traditional 39T double ringed road cranks, but the 50T outer loses only 6% off the top end compared to the 53T traditional outer. You get the hill climbing capability of a triple, yet less weight than a standard double Selle San Marco has reintroduced the legendary Concor saddle. With hollow chromoly rails and all day comfort the Concor could possibility be the Pro Tour saddle of choice. Ritchey's Pro components: the "Pro" stands for Proven. Light, reliable, great looking.
Fork typeJamis full carbon composite fork, 1.5” hollow formed crown, monocoque one-piece forming technology, carbon dropouts with stainless axle interfaces
Frame typeFull mid modulus carbon fiber, Omniad T700 lay-up, tri-oval shaped top and down tubes with SST tubing diameters, 1 1/8-1 1/2” head tube, PressFit 30 BB shell, asymmetrical chainstays, twin SST seat stays, forged one-piece dropouts with replaceable deraill
Front derailleurUltegra IFD-6770 braze-on front with Shimano 34.9mm clamp
HeadsetFSA, integrated, sealed bearing, 1 1/8-1 1/2”
Hub frontRS10 forged aluminum loose ball hubs
Hub rearRS10 forged aluminum loose ball hubs
Rear derailleurShimano Ultegra Di2 electronic IRD-6770 rear
Recommended forRoad, Club Ride, Elite Club Ride, Road Race
Rims type16/20H, 24mm rim profile with asymmetric rear rim
SaddleSelle San Marco Concor with Microfil cover and hollow chromoly-moly rails
ShiftersShimano Ultegra Di2 electronic IST-6770 shifters, 20-Speed
Shock typeN/A
Spokesbladed straight-pull butted spokes
StemRitchey Pro 4-axis, 3D net forged 6061, 6˚ x 90mm (48/51), 100mm (54/56), 120mm (58/61)
TiresVittoria Rubino Pro Slick, 700 x 23c, folding
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