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2021 Radon

SPIRE DISC 8.0

A carbon frame endurance bike with upper mid-range components and shimano 105 hydraulic disc brakes.
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Manufacturer Price

€2,029($2,360)
Weight18.5 lbs  
FrameCarbon
ForkCarbon
Wheels700c Aluminum
Drivetrain2 × 11
Groupset105
BrakesShimano 105 Hydraulic Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

39 mph

SPIRE DISC 8.0

39 mph

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Highest gear

(descending)

Specs
Build
Frame

SPIRE Carbon Disc

Color: Brightred / White

Fork

RADON SPIRE DISC Full Carbon

Headset

VP, IS42/IS52

Stem

Newmen Evolution 318.4, Ø31.8mm; 48/90mm, 51/100mm, 54/100mm, 57/100mm, 60/110mm, 63/120mm

Handlebar

Newmen Evolution Wing Bar, Ø31.8mm; 48/400mm, 51/400mm, 54/420mm, 57/420mm, 60/440mm, 63/460mm

Saddle

Selle Italia SL

Seatpost

Newmen Evolution, 27.2 x 350mm

Type: Rigid

Pedals

not included

Grips

RADON performance tape

Groupset
Rear Derailleur

Shimano 105 FD-R7000, braze-on

Crank

Shimano 105 FC-R7000, 50/34T; 48/170mm, 51/172,5mm, 54/172,5mm, 57/172,5mm, 60/175mm, 63/175mm

Shifters

Shimano 105 ST-R7020, 2x11

Cassette

Shimano 105 CS-HG700, 11-34

Chain

Shimano 105 CN-HG601

Brakes

Shimano 105 BR-R7070, flat mount

Type: Shimano 105 Hydraulic Disc

Wheels
Rims

DT Swiss P1800 Spline DB 32, 18mm, 100/142mm

Tires

Continental Grand Sport Race, foldable, 28" x 28mm

Rider Notes
Riders Also Viewed

First added January 22

Last updated January 13

Not listed for 1,583 days