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2026 Bross

ZENITH A1

An aluminum frame aero bike with mid-range components and microshift r9 mechanical disc brakes.
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FrameAluminum
ForkCarbon
Wheels700c Aluminum
GroupsetmicroSHIFT R9
BrakesmicroSHIFT R9 Mechanical Disc
View on brossbikes.comLearn about Bross
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Geometry
Specs
Build
Frame

BROSS ZENITH aluminum frame with full internal cable routing, flat mount disc, 142x12mm thru-axle, BSA threaded bottom bracket

BB StandardBSA, 68mm, Threaded

Fork

BROSS ZENITH carbon fork, flat mount disc, internal routing, 100x12mm thru-axle

Bottom Bracket

BSA, 68mm, threaded

Headset

BROSS fully integrated internal cable routing headset

Stem

BROSS ZENITH aluminum integrated stem

Handlebar

BROSS ZENITH aluminum aero handlebar

Saddle

SR saddle

Seatpost

BROSS ZENITH aluminum aero seatpost

TypeRigid

Groupset
Rear Derailleur

L-TWOO RD-R9

Front Derailleur

L-TWOO FD-R9

Crank

PROWHEEL RPL one-piece crankset

Cassette

L-TWOO 11-32T

Chain

KMC x11

Brakes

L-TWOO BR-R9 caliper

TypemicroSHIFT R9 Mechanical Disc

Brake Levers

L-TWOO ST-R9 shift/brake levers

Wheels
Rims

BROSS BRW-D rims

Tires

CONTINENTAL ULTRA SPORT 700x28C

Disc Rotors

BROSS disc

Rider Notes
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First added 16 de abril

Last updated 13 de junio