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Trek FX 1 Midstep Gen 4 is a versatile stepthrough hybrid with lightweight aluminium frame, Shimano 8-speed, and mechanical disc brakes—perfect for commuting, fitness, and city cruising.
Trek FX 1 Midstep Gen 4 is a versatile stepthrough hybrid with lightweight aluminium frame, Shimano 8-speed, and mechanical disc brakes—perfect for commuting, fitness, and city cruising.
Trek

Trek FX 1 Midstep Gen 4 Hybrid Bike 2026 in Lavender Haze

£550.00
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Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Hassle free returns

In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Trek FX 1 Midstep Gen 4 Hybrid Bike 2026 in Lavender Haze

Season:2026

Brand:Trek

Code:57137PR

The FX 1 Midstep is a versatile and sleek hybrid bike for riding all around town. Its classic stepthrough frame is easier to mount and dismount, and make it perfect to ride for exercise, commuting or fun. You get price-conscious parts that still deliver a big range of speeds, disc brakes that let you stop on a penny and loads of mounts for accessories.

It's right for you if...

You want a ride that does everything, while keeping price conscious. Cruising through town, going for a workout or just riding for fun are all up your alley.

The tech you get

A lightweight aluminium frame with stepthrough geometry that's easier to mount and dismount, mechanical disc brakes for all-weather stopping power. A Shimano drivetrain with eight speeds, so you're never pedalling too hard or too softly, and mounts that make it easy to accessorise your ride.

The final word

The FX 1 Mid-step is a hybrid bike with budget-minded parts that perform on fitness rides, trips to the market or your morning commute. It has endless options for accessories and powerful disc brakes, which provide superior stopping power in all-weather conditions.

Key Features & Benefits:

  • Aluminium Frame:Lightweight with internal cable routing and comfortable, upright geometry.
  • Mechanical Disc Brakes:For superior all-weather stopping power.
  • Shimano 8-Speed:Wide range of gearing so you're never pedalling too hard or too soft

Full Specification:

  • Frame:Alpha Gold Aluminium, internal cable routing, rack & mudguard mounts, post mount disc, kickstand mount, 135x5 mm QR
  • Fork:FX steel, flat-mount disc, rack mounts, 410 mm axle-to-crown, ThruSkew 5 mm QR
  • Number of Gears:16
  • Gear Shifters:Shimano EF500
  • Front Derailleur: Shimano Tourney TY606, 31.8/34.9 mm clamp, top swing, dual pull
  • Rear Derailleur: Shimano Acera M3020-8, 40T max cog
  • Chainset:Forged alloy 46/30, 170 mm length
  • Chainrings:46/30
  • Rear Cassette:Shimano Acera M3020-8, 40T max cog
  • Chain:KMC Z8.3
  • Bottom Bracket:Sealed cartridge, 68 mm
  • Pedals:Wellgo nylon platform
  • Rims:Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
  • Front Hub:Formula DC-20, alloy, 6-bolt, 5x100 mm QR
  • Rear Hub:Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
  • Front Tyre:Bontrager H2 Comp, wire bead, 30 tpi, 700x35 mm
  • Rear Tyre:Bontrager H2 Comp, wire bead, 30 tpi, 700x35 mm
  • Brakes:Tektro MD-U310 mechanical disc
  • Handlebars:Bontrager Riser, steel, 25.4 mm, 30 mm rise, 600 mm width
  • Handlebar Grips:Trek Line Ergonomic Comp. Lock On
  • Headset:
  • Stem:Bontrager Alloy 25.4mm clamp, 10 degree S/M 90mm length. L/XL 110mm
  • Saddle:Bontrager Sport Womens
  • Seatpost:Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length (L/XL 400mm)
  • Accessories:N/A
  • Weight:
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.

Sizing Chart for Trek FX 1, 2 & 3

Frame SizeRider Height (cm)Rider Height (')Inseam (cm)Inseam (")
XS147 - 1554'10" - 5'1"69 - 7327" - 29
S155 - 1655'1" - 5'5"72 - 7828 - 30
M165 - 1755'5" - 5'8"77 - 8330 - 32
L175 - 1865'8" - 6'1"82 - 8832 - 34
XL186 - 1976'1" - 6'5"87 - 9335 - 36
XXL197 - 2036'6" - 6'8"92 - 9536" - 37

Geometry Information for Trek FX 1, 2 & 3

Frame size letterXSSMLXLXXL
Wheel size700c700c700c700c700c700c
A — Seat tube3337.54246.55258.5
B — Seat tube angle75.0°74.5°74.0°73.5°72.5°72.0°
C — Head tube length11.51416.51921.524
D — Head angle70.0°70.5°71.0°71.5°72.5°73.0°
E — Effective top tube52.854.356.358.361.363.5
F — Bottom bracket height28.528.528.528.528.528.5
G — Bottom bracket drop6.56.56.56.56.56.5
H — Chainstay length44.744.744.744.744.744.7
I — Offset555555
J — Trail7.47.16.86.45.85.5
K — Wheelbase105.2105.9107108108.7109.7
L — Standover67.571.575.479.183.688.4
M — Frame reach38.338.539.339.940.941.6
N — Frame stack54.356.859.46264.867.3


Warranty Information for Trek:

Lifetime warranty on Frame sets (frame and rigid fork), main frame and full suspension swing arms for the lifetime of the original owner, and Bontrager wheels with carbon rims.

2-year warranty on Rear suspension linkage components, including bearings, rocker link and accompanying hardware and components, Bontrager wheels with alloy rims, Paint and transfers.

For full warranty policy please visit trekbikes.com

Sizing Information
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