Jamis Ventura A1 vs Viathon R.1 105

Compare Specifications of Jamis Ventura A1 and Viathon R.1 105

Selected Bikes

Jamis Ventura A1
Jamis Ventura A1

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Viathon R.1 105
Viathon R.1 105

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Model:

Brand:

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Brand:

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Technical Specifications
Frame Size Specific Design double-butted 6061 aluminum compact sloping top tube frame design with with redesigned rear triangle, SST tubing diameters and internal cable guides, 1 1.5 - 1 1/8” tapered head tube, butted seat tube for 27.2 seat post, flat mount disc brake mount, replaceable derailleur hanger and fender/rack eyelets VIATHON R.1 ROAD FRAME FULL CARBON
Stem Ritchey 4-Axis, 3D forged 6061 alloy, 6˚ x 90mm (48/51), 100mm (54/56), 120mm (58/61) ZIPP SERVICE COURSE, 31.8 MM, 6°, 110 MM
Handle Bar Ritchey Logic, 6061 aluminum, 31.8 x 400mm (48/51) 420mm (54/56), 440mm (58/61) ZIPP SERVICE COURSE 70 ERGO
Fork Jamis Performance ECO carbon composite with carbon steerer, 1.5” hollow formed crown, monocoque one-piece forming technology, carbon dropouts with stainless tabs, flat mount disc brake mount with internal cable routing, exposed fender eyelets VIATHON R.1 ROAD FORK FULL CARBON
Seatpost Ritchey Road, 27.2 x 350mm with alloy clamp ZIPP SERVICE COURSE, 27.2 MM, 350 MM
Crankset FSA Vero, 50/34T, 170mm (48/51), 172.5mm (54/56), 175mm (58/61) SHIMANO 105 FC-R7000 50-34T
Pedals Touring platform style, full alloy with toe clips --
Chain KMC Z9 SHIMANO CN-HG601-11
Shifters Shiftlevers : Shimano Sora ST-R3000 Dual Control STI, 18-speed SHIMANO 105 ST-R7020
Saddle Selle Royal Asphalt with integrated clip system FIZIK ANTARES R5
Headset FSA Integrated, threadless, 1.5 - 1 1/8” --
Derailleur Front Sora FD-R3000 with 31.8mm alloy clamp SHIMANO 105 FD-R7000
Derailleur Rear Shimano Sora RD-R3000 SHIMANO 105 RD-R7000
Cassette Shimano HG201 9-speed, 11-32T SHIMANO 105 CS-R7000 11-28T
Bottom Bracket FSA sealed cartridge, 68 x 110.5mm ROTOR PRESS FIT 4624
Tyres
Front Vittoria Zaffiro, 700 x 28c CONTINENTAL ULTRA SPORT II, 700 X 25
Rear Vittoria Zaffiro, 700 x 28c CONTINENTAL ULTRA SPORT II, 700 X 25
Wheel / RIM Alex ATD 470 disc specific rims with TCS (Tubeless Compatible System), 32H, Joytec 6-bolt alloy hubs with QR and 14g stainless steel spokes MAVIC AKSIUM DISC CENTERLOCK
Brakes
Front Tektro Lyra mechanical disc brake SHIMANO SM-RT70 160 MM
Rear Tektro Lyra mechanical disc brakes SHIMANO SM-RT70 160 MM
Brake Lever Shimano Sora ST-R3000 STI levers SHIMANO 105 ST-R7020
Suspension
Front -- --
Rear -- --
Colors Available
Colors Ink Copper
Silver


Physical Specs
Length -- --
Overview
Features -- - Shimano 105 components deliver affordable refinement
- Mavic Aksium wheels deliver speed and durability
- Internal cable routings reduce aerodynamic drag
- Zipp Service Course alloy bar and stem offer precision and strength
Additional Details Tape : Jamis suede tape with gel
Sizes : 48, 51, 54, 56, 58, 61cm
Sizes : 52, 54, 56, 57.5, 59
Front Axle : 12MM X 100MM QUICK RELEASE THRU-AXLE
Rear Axle : 12MM X 142MM QUICK RELEASE THRU-AXLE
Inner Tubes : KENDA PRESTA
Bar Tape : FIZIK WHITE

Which one do you think is better? And why?
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