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The Trek 520 touring bike is built to last. Constructed with high-quality branded components, the 520 is super reliable over the long haul. With rack and mudguard mounts it's ready to carry anything you need for your latest adventure!
The Trek 520 touring bike is built to last. Constructed with high-quality branded components, the 520 is super reliable over the long haul. With rack and mudguard mounts it's ready to carry anything you need for your latest adventure!

Trek 520 Disc Touring Bike 2021 in Red

Click & Collect for Free

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!


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 the Undetermined

Hassle free returns

Any item, except food or face masks 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 a valid proof of purchase.

Online or in-store purchases can both be returned to any store free of charge or can be returned by post after completing the online returns form. If you are returning an item due to a fault, we will refund your postage.

If you wish to return your bike to us, please keep the box it arrived in and let us know using the returns form and we will arrange collection.

Customer Returns Form

If you wish to cancel, return or exchange an order please fill in the form below and a member of staff will be in contact within 48 hours to assist. Returns can be processed quicker if all required information is added.

Terms & Conditions

Items must be returned in their original packaging and be un-used. Refunds will be issued once the products 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 £24.99 for collection. If you do not have the original box, 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 receipt.

Trek 520 Disc Touring Bike 2021 in Red Information

Season : 2021

Brand : Trek

Code : 240002020DiabloRED

The Trek 520 touring bike is made for the open road. It's the longest-running model in Trek’s line-up, and it's built to carry you and your gear on your longest journeys. Rack and mudguard mounts, wide-range 27-speed drive train that's great for hauling a heavy load up hills and a stable touring geometry make it the perfect choice for loaded multi-day trips and comfortable all-day adventures.
This bike is right for you if you measure the success of a ride in the number of beautiful views, and when you're not riding, you're likely to be found planning your next escape. The 520 is a  stable touring bike that's just as capable of carrying a heavy load on multi-day trips as it is on everyday rides.
The 520 is ready for adventure straight out of the box, featuring a road-smoothing chromoly steel frame, alloy disc touring fork with a ThruSkew captured quick release skewer and Shimano Sora brakes. This comfortable workhouse is capable of everything from daily rides to expedition tours and comes fitted with Bontrager Tubeless Ready wheels, puncture-resistant tyres with reflective sidewalls, and all-weather mechanical disc brakes as standard to ensure you can get to wherever you want to be! 

Key Features & Benefits:

Steel frame: With a bomb proof platinum butted frame for a steel smooth ride.

27 Shimano Gears: Proven and reliable touring componentry & suitable for all terrain. 

Mechanical Disc Brakes: High quality Spyre brakes to keep you fully in control, and keep your speed in-check on the descents.

Full Specification:

  • Fork:  Alloy disc touring fork w/lowrider mounts and Thru-skew captured skewer system
  • Number of Gears:  27
  • Gear Shifters:  Shimano Sora, 9-speed
  • Chainset:  Shimano Alivio, 2-piece, w/chain guard
  • Chainrings:  48/36/26T
  • Rear Cassette:  Shimano HG200, 11-36, 9-speed
  • Chain:  KMC X9, 9-speed
  • Front Derailleur:  Shimano Sora, 34.9 mm clamp-type
  • Rear Derailleur:  Shimano Alivio 9-speed, Shadow Design
  • Bottom Bracket:  Sealed Cartridge
  • Pedals:  Not Included
  • Rims:  Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21 mm width, presta valve
  • Front Hub:  Shimano M475, 6-bolt disc, 100x5 mm QR
  • Rear Hub:  Shimano M475, 6-bolt disc, 135x5 mm QR
  • Front Tyre:  Bontrager H1 Hard-case Ultimate, 700x38 c w/reflective sidewall
  • Rear Tyre:  Bontrager H1 Hard-case Ultimate, 700x38 c w/reflective sidewall
  • Brakes:  TRP Spyre C 2.0 mechanical disc
  • Handlebars:  Bontrager Comp VR-C, 31.8 mm
  • Handlebar Tape:  Bontrager tape
  • Headset:  1-1/8˝ threadless, sealed cartridge bearings
  • Stem:  Bontrager Elite, 31.8 mm, 7-degree, w/computer and light mou
  • Saddle:  Bontrager Evoke 1.5
  • Seatpost:  Bontrager SSR, 2-bolt head, 27.2 mm, 12 mm offset
  • Accessories:  Front and Rear alloy carriers
  • Weight:  Not Available

Road Bike Sizing Guide

Road bikes as the name implies are for road use. There are a growing number of “gravel” or “adventure” bikes which are based on road bicycles, but feature wider and more versatile tyres and disc brakes, so you can also do light trail riding such as towpaths. They are also more pothole resistant!

Sizing is normally in cm, and is a measurement from the centre of the chain-wheel axle (The BB or bottom bracket) and the top of the frame seat tube. Some are measured to the centre of the seat tube where it meets the top tube (otherwise known as the crossbar).

That measurement is on road bikes normally in CM – and no-one really knows why! Some road bikes will use “T-Shirt Sizing” so S, M, L, XL etc. but there will be a geometry chart that then shows the measurement in CM.

What is your height? Your suggested bicycle size
Feet/Inches Centimetres Suggested Size
4'10" - 5'0" 148cm - 152cm XX-Small (47-48cm)
5'0" - 5'3" 152cm - 160cm X-Small (49-50cm)
5'3" - 5'6" 160cm - 168cm Small (51-53cm)
5'6" - 5'9" 168cm - 175cm Medium (54-55cm)
5'9" - 6'0" 175cm - 183cm Large (56-58cm)
6'0" - 6'3" 183cm - 191cm X-Large (58-60cm)
6'3" - 6'6" 191cm - 198cm XX-Large (61-63cm)

If you need any more advice on bike sizing for road bikes please contact us and we can help you make the right choice.

Technical Information

Geometry for Trek 520 Disc Touring Bike

Trek 520 Disc Touring Bike Geometry Chart

Dimensions in mm unless stated otherwise

  48cm 51cm 54cm 57cm 60cm 63cm
A. Seat Tube 440 482 512 543 575 605
B. Seat Tube Angle 74.3° 74.0° 73.8° 73.5° 73.0° 72.8°
C. Head Tube Length 115 125 140 160 200 230
D. Head Angle 69.5° 70.0° 71.0° 71.8° 71.8° 72.3°
E. Effective Top Tube 520 531 543 557 583 603
F. Bottom Bracket Height 274 274 278 278 278 278
G. Bottom Bracket Drop 75 75 70 70 70 70
H. Chainstay Length 450 450 450 450 450 450
i. Offset 520 520 520 520 520 520
j. Trail 74 71 65 59 59 56
K. Wheelbase 1041 1045 1048 1052 1074 1086
L. Standover 713 741 768 794 826 854
M. Frame Reach 368 373 378 383 392 400
N. Frame Stack 540 551 565 587 625 655


Trek Touring Bikes: Trek 520

Heather and Kassie Hinrichsen, winners of Trek's Driven By Adventure contest, tour the Oregon coast on a pair of Trek 520s, the longest-running model in Trek's lineup. There is no better way to see the world than from the saddle of a bike. See how Heather and Kassie are Driven By Adventure.

Sizing Information

Specific Size Chart for Trek 520 Disc Touring Bike

Size Rider Height (') Rider Height (cm) Inseam (cm) Inseam (")
48 5'2" - 5'4"  158 - 163 74 - 77 29" - 30"
51 5'3" - 5'6" 162 - 168 76 - 79 30" - 31"
54 5'6" - 5'8" 168 - 174  78 - 82 30" - 32" 
57 5'8" - 6'0"  173 - 184 81 - 86 32" - 34"
60 6'0" - 6'3"  185 - 190 86 - 90 34" - 35"
63 6'3" - 6'6" 190 - 197 89 - 93 35" - 37"

These are the sizes recommended by Trek, and Balfes cannot be held responsible for any sizing errors. 

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