2021 Wilier 503X Comp - Large

Taking more riders off-road and into the mountains

The 503X is the complete redesign of our flagship aluminum hardtail. We rethought the details, and tested the bike on the best MTB trails in the Dolomites. The 503X meets the needs of a wide mountain bike audience, getting more people off-road and into the mountains.

Available in three colors and three specifications COMP, PRO and RACE, the 503X is an MTB hardtail that enhances value for money. Featuring 29 inch wheels and 100 mm of fork travel.

The 6061 double butted aluminum frame incorporates the latest advances in the offroad field:

- Tapered Head tube: 1 ½" bottom, 1 ⅛" top - Integrated cables 

- Press fit bottom bracket 92 mm 

- Seatpost 27.2 mm diameter 

- Direct mount Derailleur 

- Thru-axle rear dropout: 142 x 12mm

Drivetrain: SHIMANO DEORE 12S M6100

Wheelset: WILIER TRIESTINA ROVER 29 ALU

Handlebar: PROMAX HB-3018

Stem: PROMAX DA282

Headset: RITCHEY COMP PRD15862

Headset: RITCHEY COMP PRD15862

Shifters: SHIMANO DEORE SL-M6100 RA

Rear Derailleur: SHIMANO DEORE RD-M6100-SGS

Tires: VITTORIA BARZO 29" X 2.25 RIGID

Saddle: SELLE ITALIA X-BASE

Chain: SHIMANO DEORE CN-M6100 118 LINK

Cassette: SHIMANO DEORE CS-M6100-12 10-51T

Frame: ALU 6066/6061 DOUBLE BUTTED, QUICK RELEASE 

Weight: 13,700 KG +/- 5%

Fork: SUNTOUR XCR32 100 MM BLACK STANCHIONS

Crankset: SHIMANO FC-MT510 32T

The 503X is available with 29" wheels in 4 sizes: S, M, L, and XL. 

• Brand:
  Wilier
• Condition:
  New

• Size:
  Small
• Size:
  Medium
• Size:
  Large
• Size:
  Extra Large

We want you to be beyond happy with your purchase from My Bike Shop! So most bikes, wheels and gear we sell are backed by our 30-Day Satisfaction Guarantee. We're able to offer this because every bike must meet our rigorous and meticulous 72-Point Inspection before being sold and shipped, and all wheels and gear must meet specific certification standards as well prior to shipping. If for any reason you're not satisfied with your item(s), just let us know and we’ll make it right or take it back. It's that simple. We aim to please, but if the item(s) and our service do not meet your expectations or work out otherwise, just ship it back our way for a refund (certain fees may apply).