The Doppler offers riders a traditional touring bike with smooth-rolling 650b tires that can venture into the dirt. 650b wheels offer a distinct advantage by offering a larger-volume tire that provides a comfortable and quick ride on pavement with greater cushion and traction on rough roads and unpaved surfaces. Ideal for loaded touring and harsh conditions, the Doppler frame offers classic road-bike geometry and a high level of functionality. 

TECHNICAL SPECIFICATIONS
SIZES
Semi-Compact: 49cm, 52cm, 54cm, 56cm, 58cm, 60cm

COLOR(S)
Jet gray

FRAME
Breezer butted-chromoly steel, 44mm headtube, BSA Threaded BB, 142 x 12mm

FORK
Chromoly disc, 1 1/8", rack / fender & side bottle mounts, 100 x 12mm through-axle

CRANKSET
Oval 300, 48/32T

BOTTOM BRACKET
Praxis BSA M24

PEDALS
N/A

FRONT DERAILLEUR
Shimano Tiagra

REAR DERAILLEUR
Shimano Tiagra

SHIFTERS
Shimano Tiagra, 2x10-speed

CASSETTE
Shimano, HG500, 11-34T, 10-speed

CHAIN
Shimano CN-4601 10-speed

WHEELSET
650B WTB ST i23 TCS disc, tubeless compatible, front dynamo hub, stainless 14g spokes, 32H

TIRES
WTB Horizon, 650 x 47c, wire bead

BRAKESET
Tektro HY/RD C hydraulic disc, 160mm rotor

BRAKE LEVERS
Shimano Tiagra

HEADSET
FSA 1 1/8, No.10 ZS44

HANDLEBAR
Breezer B-Road, 6061 alloy, 31.8mm clamp, 133mm drop

STEM
Breezer B-Road, 3D-forged 6061 stem body, +/-7°

TAPE
Breezer Texture Plus, made from recycled material

SADDLE
WTB Volt Comp 142x265, steel rail

SEATPOST
Breezer, 6061 alloy, 27.2mm diameter

FENDERS
Alloy fenders w/ struts

HEADLIGHT
Axa Blueline 50 lux, steady auto

TAILLIGHT
AXA Retro, battery