Sidi Dragon 4
  • Color: Black
  • Color: Yellow / Black
Please select options
Please call (301) 963-1273 or email for availability


- In 1999, SIDI revolutionized mountain bike shoe design with the SOLE REPLACEMENT SYSTEM (SRS), owing mountain bikers to replace the most wear-heavy part of the shoe—the sole. The MTB SRS CARBON COMPOSITE Sole consists of four inserts screwed, easily removable and replaceable. In addition, an optional toe guard can be installed using the same screws as the insert. The SRS tread panels and screws are available as spare parts. It is toe spike compatible.

- SIDI’s TECHNO-3 SYSTEM dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit. SIDI’s famously reliable and replaceable closures are improved by a proprietary SIDI Wire material that is completely non-binding for intuitive and effortless on-the-fly adjustments. Like most SIDI small parts, the TECNO-3 SYSTEM is serviceable and replaceable.

- The SOFT INSTEP CLOSURE SYSTEM is a wide, anatomically curved strap combined with a soft, thermo-formed EVA pad that distributes pressure evenly over the instep area. The SOFT INSTEP CLOSURE SYSTEM is adjustable from both sides, to perfectly center the EVA pad over a high or low instep. The system eliminates the need for the High Instep Extender. The SOFT INSTEP CLOSURE SYSTEM is replaceable.

- The ADJUSTABLE HEEL RETENTION DEVICE reinforces the top of the heel cup and improves the fit by closing the back of the shoe securely around the rider’s heel. The heel retention device tightens the top of the heel cup so that the heel doesn’t slide out during steep climbs or sprints. Each side of the heel can be adjusted independently, for a perfect fit. For a custom adjustment turn the screw towards the + sign to tighten the heel retention device and towards the – sign to open it. Lightweight, easy to use, and replaceable.

Tallone Sidi
- The reinforced heel keeps the foot in a optimal position and avoids the shoe being deformed by extreme performance or prolonged pressure.

High Security Velcro
- HIGH SECURITY VELCRO straps with integrated locking polymer teeth, that engage onto each other when the strap is closed. This feature makes the closure more secure and the strap becomes unmoveable.

Microfibra Techpro
- Microfibra TechPro is a microfiber PU made in Italy. It is considered a highly technological and innovative, eco-friendly leather suitable for technical and sports products which require high performance levels. Performa TechPro incorporates features of resistancy, stability, lightness, transpirability, water-repellency and eco-friendliness. Performa TechPro microfiber is Oeko-Tex certified, does not contain harmful substances and respects the limits of the law.

Part Numbers

Option UPC MPN
Black / 39 08017732472083 SMS-DG4-BKBK-390
Black / 39.5 08017732472090 SMS-DG4-BKBK-395
Black / 41 08017732472120 SMS-DG4-BKBK-410
Black / 42 08017732465214 SMS-DG4-BKBK-420
Black / 43 08017732472151 SMS-DG4-BKBK-430
Black / 44 08017732472175 SMS-DG4-BKBK-440
Black / 45 08017732472199 SMS-DG4-BKBK-450
Black / 46 08017732472212 SMS-DG4-BKBK-460
Black / 46.5 08017732472229 SMS-DG4-BKBK-465
Black / 47 08017732472236 SMS-DG4-BKBK-470
Black / 48 08017732472243 SMS-DG4-BKBK-480
Black / 41.5 08017732472137 SMS-DG4-BKBK-415
Black / 42.5 08017732472144 SMS-DG4-BKBK-425
Black / 43.5 08017732472168 SMS-DG4-BKBK-435
Black / 44.5 08017732472182 SMS-DG4-BKBK-445
Black / 45.5 08017732472205 SMS-DG4-BKBK-455
Black / 40 08017732472106 SMS-DG4-BKBK-400
Black / 40.5 08017732472113 SMS-DG4-BKBK-405
Yellow / Black / 39.5 08017732471925 SMS-DG4-YLBK-395
Yellow / Black / 39 08017732471918 SMS-DG4-YLBK-390


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