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Trek FX Sport 4

£1,675.00

SKU: 5267837

Product Details

FX Sport 4 is a carbon fibre fitness bike for riders who want the speed of a lightweight road bike with the comfort and control of a flat handlebar. The 1x drivetrain simplifies shifting without sacrificing gear range, making this high-performance bike perfect for everything from solo workouts to speedy group rides.

It's right for you if...

You're ready to log big miles, and you prefer the feel of a flat handlebar to the drop bars that come stock on most road bikes. You prioritise comfort and performance equally, and want the simplicity that a 1x drivetrain provides.

The tech you get

A lightweight 400 Series OCLV Carbon frame and fork, a Shimano Deore 1x drivetrain with a wide-range cassette, hydraulic disc brakes for all-weather stopping power, a lightweight tubeless ready wheel set, wide, fast-rolling Bontrager GR1 Expert gravel tyres and a vibration-absorbing handlebar and ergonomic grips.

The final word

Fast, capable, comfortable. This bike has a road -smoothing carbon frame and quality parts that will hold up over serious miles, including the simpler-shifting 1x drivetrain.

How tall are you?

To measure your height, stand up straight, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.

What is your inside leg?

How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inside leg measurement. Your inside leg is very important to your final bike size so please measure carefully.

Sizing

size-table
Size Rider Height Inseam
XS

147 - 155 cm

4'10" - 5'1"

69 - 73 cm

27" - 29"

S

155 - 165 cm

5'1" - 5'5"

72 - 78 cm

28" - 31"

M

165 - 175 cm

5'5" - 5'9"

77 - 83 cm

30" - 33"

L

175 - 186 cm

5'9" - 6'1"

82 - 88 cm

32" - 35"

XL

186 - 197 cm

6'1" - 6'6"

87 - 93 cm

34" - 37"


Geometry

All measurements provided in cm unless otherwise stated.

  
Sizing table
Frame size letter Wheel size A — Seat tube B — Seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
XS 700c 35.6 75.0° 11.5 70.0° 52.8 28.5 6.5 44.2 5.0 7.4 104.7 70.8 38.3 54.3
S 700c 40.6 74.5° 14.0 70.5° 54.3 28.5 6.5 44.2 5.0 7.1 105.4 75.1 38.5 56.8
L 700c 50.8 73.5° 19.0 71.5° 58.3 28.5 6.5 44.2 5.0 6.4 107.5 81.2 40.0 62.0

FAQ

Questions and answers