503X RACE - MY2024; Off-Road for everyone
The 503X is the newly redesigned version of Wilier's flagship aluminum hardtail, built to meet the demands of a broad mountain biking audience. We’ve refined every detail and rigorously tested it on the top MTB trails in the Dolomites. With 29-inch wheels and 100mm of fork travel, the 503X offers exceptional performance and value, making it the perfect choice for riders looking to explore off-road terrain and mountain trails.The 6061 double butted aluminum frame incorporates the latest advances in the off-road field:
| Drivetrain |
SHIMANO DEORE 1x12 |
| Wheelset |
WILIER TRIESTINA ROVER 29 ALU |
| Frame |
ALU 6066/6061 DOUBLE BUTTED |
| Fork |
ROCK SHOX JUDY SILVER TK 100 mm |
| Rear Derailleur |
NX EAGLE |
| Front Derailleur |
- |
| Shift Right |
NX EAGLE TRIGGER |
| Cassette |
PG 1230 EAGLE 11-50 |
| Chain |
NX EAGLE 126 |
| Crankset |
NX EAGLE, NX EAGLE B148 |
| Brakes |
SHIMANO MT201 |
| Saddle |
PROLOGO KAPPA |
| Stem |
PROMAX DA282 |
| Handlebar |
RITCHEY COMP PRD15862 |
| Seatmast | PROMAX SP264 |
| Headset | RITCHEY COMP TAPERED PRD18228 |
| Tires | VITTORIA BARZO 29" X 2.25 RIGID |
| Crank Arm Lenght |
170mm, 175mm |
| Fork Weight | |
| Frame Weight |
*subject to change.
We are constantly working on improving our bike range, which sometimes results in a component being replaced by a newer/better version. As a consequence, it is possible that some of the bikes of this range have more up to date components than reflected in this table.

| - | S | M | L | XL |
|---|---|---|---|---|
| Reach (mm) | 395 | 383 | 388 | 394 |
| Stack (mm) | 617 | 628 | 639 | 650 |
| H (cm) | 42,0 | 45,0 | 49,0 | 53,0 |
| C/C (cm) | 36,0 | 39,0 | 43,0 | 47,0 |
| L (cm) | 58,0 | 60,0 | 62,5 | 65,0 |
| A (°) | 73,5 | 73,5 | 73,0 | 72,5 |
| H1 (cm) | 10,0 | 11,2 | 12,4 | 13,5 |
| L1 (cm) | 44,0 | 44,0 | 44,0 | 44,0 |
| A1 (°) | 70,5 | 70,5 | 70,5 | 70,5 |
| WHEELSET | 29'' | 29'' | 29'' | 29'' |
| TRAVEL (mm) | 100 |
100 |
100 |
100 |

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