Public D8i Alfine Disc vs Viathon R.1 Dura-Ace

Compare Specifications of Public D8i Alfine Disc and Viathon R.1 Dura-Ace

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Public D8i Alfine Disc
Public D8i Alfine Disc

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Viathon R.1 Dura-Ace
Viathon R.1 Dura-Ace

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Model:

Brand:

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Technical Specifications
Frame PUBLIC 100% 4130 full chromoly steel frame, with fender, rack and water bottle braze-ons, integrated kickstand bracket VIATHON R.1 ROAD FRAME
Stem High polished alloy, threadless, +/- 10 degree rise, 25.4 clamp (80 mm for S/M; 100 mm for L) ZIPP SERVICE COURSE SL B1, 31.8MM, 6°, 110 MM
Handle Bar PUBLIC Brunch handlebar, alloy, 570 mm wide ZIPP SL-70 ERGO CARBON
Fork PUBLIC 100% 4130 Chromoly steel unicrown disc fork, with fender and rack braze-ons VIATHON R.1 ROAD FORK
Seatpost Kalloy Alloy micro-adjust high polish 27.2 mm x 350 mm length, with integrated clamp ZIPP SL CARBON B1, 0 OFFSET, 27.2 MM, 330 MM
Grip PUBLIC Slender Grip, with alloy clamps --
Crankset Shimano Alfine S501 Crankset, 39T, 170 mm SHIMANO DURA-ACE FC-R9100, HOLLOWTECH2, 50-34T
Pedals Wellgo M149 full alloy platform and cage, 9/16" chromoly axle --
Chain -- SHIMANO CN-HG901, 11-SPEED
Shifters Shimano Alfine Rapidfire trigger shifters for 8-speed internal hub SHIMANO DURA-ACE ST-R9120, DISC BRAKE
Saddle PUBLIC Premium Sport Saddle, 153 mm wide, chromoly rails, with brass rivits FIZIK ANTARES R1
Headset 1 1/8" threadless, steel --
Derailleur Front -- SHIMANO DURA-ACE FD-R9100, DOWN-SWING, BRAZED-ON TYPE
Derailleur Rear -- SHIMANO DURA-ACE RD-R9100, 11-SPEED, SHADOW
Hub Front Shimano Alfine 8-speed internal hub with disc mount --
Hub Rear Formula alloy hub with quick-release axle --
Spoke Stainless steel 14G --
Cassette -- SHIMANO DURA-ACE CS-R9100, 11-SPEED, 11-30
Bottom Bracket -- ROTOR PRESS FIT 30TO24 CONVERTER
Stand Massload alloy center mount --
Tyres
Front Kenda Kwest, 700 x 35c, 60TPI, with reflective stripe CONTINENTAL GRAND PRIX 5000 TL 700 X 25 BLACK + BLACK CHILI
Rear Kenda Kwest, 700 x 35c, 60TPI, with reflective stripe CONTINENTAL GRAND PRIX 5000 TL 700 X 25 BLACK + BLACK CHILI
Wheel / RIM Painted to match, alloy double wall, 32H HED VANQUISH 4GP CARBON DISC
Tube Presta, 48 mm vallve --
Brakes
Front Shimano MT-200 hydraulic disc brake, Deore SM-RT86 160 mm rotors, with 3-finger steel levers SHIMANO SM-RT900, 160 MM, W/LOCK RING
Rear Shimano MT-200 hydraulic disc brake, Deore SM-RT86 160 mm rotors, with 3-finger steel levers SHIMANO SM-RT900, 160 MM, W/LOCK RING
Brake Lever -- SHIMANO DURA-ACE ST-R9120, DISC BRAKE
Suspension
Front -- --
Rear -- --
Colors Available
Colors Polished Titanium Copper
Silver


Physical Specs
Length -- --
Weight 15 kg --
Overview
Features -- - Shimano Dura-Ace, the benchmark in shifting speed and accuracy
- HED Vanquish 4GP carbon wheels for winning aerodynamics
- Internal cable routings reduce aerodynamic drag
- Zipp SL carbon handlebar for steering precision and seatpost for comfort
Additional Details Chain guard : Painted to match, alloy
Fenders : Polished silver alloy full fenders
Freewheel : Shimano 20 tooth cog
Frame Size : Small : 50cm, Medium : 54.5cm, Large : 59.5cm
Top Tube Length ( Effective) : Small : 55cm, Medium : 58cm, Large : 61cm
Sizes : 52, 54, 56, 57.5, 59
Front Axle : SHIMANO E-THRU AXLE 100X12MM
Rear Axle : SHIMANO E-THRU AXLE 142X12MM
Inner Tubes : KENDA 23/25C
Bar Tape : FIZIK WHITE

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