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2026 Bross

ZENITH PLUME 6I

A carbon frame aero bike with upper mid-range components and shimano 105 hydraulic disc brakes.
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FrameCarbon
ForkCarbon
Wheels700c Carbon
Drivetrain2 × 12 Electronic
Groupset105 Di2
BrakesShimano 105 Hydraulic Disc
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Insights
Sizing
XXS

157cm – 167cm

XS

165cm – 173cm

SM

171cm – 179cm

MD

177cm – 185cm

LG

183cm – 191cm

XL

188cm – 197cm

XXL

194cm – 204cm

🐐 Estimated

Rider Fit Notes

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Geometry
Specs
Build
Frame

Bross Zenith Carbon Plume carbon frame, full internal cable routing, flat mount disc brakes, 142x12mm thru axle, BSA threaded bottom bracket

BB StandardBSA, 68mm, Threaded

Fork

Bross Zenith Carbon Plume carbon fork, flat mount disc brakes, internal cable routing, 100x12mm thru axle

Bottom Bracket

BSA, 68mm, threaded

Headset

Bross Zenith fully integrated internal cable routing headset, CeramicSpeed SLT ceramic bearings

Handlebar

Bross Carbon Aero carbon integrated full internal cable routing handlebar

Saddle

Fizik carbon rail saddle

Seatpost

Bross Zenith Aero carbon aero seatpost

TypeRigid

Groupset
Rear Derailleur

Shimano 105 RD-R7150

Front Derailleur

Shimano 105 FD-R7150

Crank

Shimano 105 FC-R7100

Shifters

Shimano 105 ST-R7170 2x12 speed shift/brake levers

Cassette

Shimano 105 CS-R7101

Chain

Shimano 105 CN-M6100

Brakes

Shimano 105 BR-R7170 caliper, Shimano RT-70S disc

TypeShimano 105 Hydraulic Disc

Wheels
Rims

Bross BCD-5 55mm carbon rim

Tires

Continental Grand Sport Prix TR 700x28C folding tire

Disc Rotors

Shimano RT-70S

Rider Notes
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First added 16 April

Last updated 27 June