2021 Trek Madone SL6

56cm frame · Carbon · Shimano Ultegra

£1,000

Sell yours

This bike is priced well below market

£1,000
£2,050£2,900

Description

Trek Madone SL 6 Ultegra disc carbon road bike 2021 model 56cm as new condition no scratches or chips in the paintwork, Groupset Shimano Ultegra, only ridden a few time.

2021 Trek Madone SL6 in detail

This 2021 Trek Madone SL6 is a carbon road bike in a 56cm frame. The seller describes the condition as excellent. Weight is given as 9.5kg. It is located in Newport.

Gearing is Shimano Ultegra. Brakes are hydraulic discs. Wheels are 700c, with tubeless-ready tyres.

The sale includes proof of purchase. Pedals are not included.

Details supplied by the seller.

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Overview

  • Year2021
  • Frame size56cm
  • ConditionExcellent
  • Frame materialCarbon
  • Wheel size700c
  • DrivetrainShimano Ultegra
  • Brake typeHydraulic disc
  • CategoryRoad bike
  • Weight9.5 kg
  • FitUnisex
  • ColourRed
  • ShiftingMechanical
  • Tyre typeTubeless-ready
  • Country of originUnited Kingdom
  • PedalsNot included

Condition by component

How the seller rates the main parts.

  • FrameExcellent
  • WheelsExcellent
  • BrakesVery Good
  • DrivetrainExcellent
  • TyresExcellent
What these ratings mean
Excellent
As new. No marks beyond light polishing swirls, and nothing worn far enough to think about replacing.
Very Good
Light cosmetic marks from normal use. Everything works as it should and nothing is near the end of its life.

Additional information

10 more details from the seller.

Known Issues

no issues with the bike or wear

This bike's history

Service history
Ask the seller
Last serviced
Ask the seller
Proof of purchase
Receipt on file
3 checks passed

Any questions?

Private Seller

Joined this year

Collection, or delivery arranged by the seller
Newport

Address shared in chat once you agree on collection

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Where this bike is

NewportApproximate area, not the address
Collection or deliveryDelivery arranged with the seller

Locations are shown to the nearest town. Arrange the exact meeting point with the seller.

Before you buy

Work through these before you commit.

About this advert

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Frame checkedFrame number checkedNo match on the registry we query, or our own theft reports. Checked 23 Jul 2026.How checks work →Southport

Trek Madone SL6 pros and cons

Drawn from what the seller filled in on this advert. Anything they left blank is listed under Cons, so you know what to ask before you travel.

Pros

  • Stolen check on this frame came back clear
  • Frame number recorded, so the bike can be checked against the stolen registries
  • Seller says the original proof of purchase is available

Cons

Used Road Bikes, Buyer's Guide UK

Shimano 105 carbon from 2018-2022 is the sweet spot at £900-£1,500.

Author: Cyclesite editorial team

Reviewed 29 April 2026 · 15 min read

Read the guide
2021 Trek Madone SL6