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Defender MTB Shoe

Mfg PartNum:
  (3 customer reviews)
Out of Stock
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MSRP $219.99
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The mountain can be rough on the body and the bike, but with the Defender on your feet you get extra coverage that doesn't slow you down. Featuring a lightweight, durable Politex upper, Sidi uses strategic padding and rubber inserts for the protection that's needed for hard riding on the mountain. Down below, the new Outdoor Race sole features an optimized rubber compound on the outsole for extra grip. While the midsole offers increased stiffness for more aggressive terrain and riding. A Tecno 3 Precision ratchet closure system makes micro-adjustments of just 1mm for a precise, easy fit.

The Sidi Defender MTB Shoe is compatible with 2-bolt SPD-style mountain pedals and cleats.


  • Politex upper is specifically designed for lightweight, comfortable durability.
  • Upper design adds in added protection for the inner ankle without adding bulk.
  • Sidi's Outdoor sole offers the perfect blend of stiffness and walkability.
  • Grippy rubber outsole features optimally-placed studs for the absolute in walkability.
  • Sidi Heel Cup provides pedaling stability and added security.
  • Pull-tab on the heels allow for fast transitions.
  • 4-holes plate for easy fitting of 2-bolt mountain cleats.
  • Tecno 3 closure system provides fast, easy adjustments of as little as 1mm.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. Cleats may have been mounted leaving minor marks on the soles. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Discount Codes are not applicable to Closeouts.

This product is NOT Eligible for VIP Points.

Black/Yellow - 42

Mfg PartNum: SMS-DFN-BKYL-42 

Black/Yellow - 43

Mfg PartNum: SMS-DFN-BKYL-43 

Black/Yellow - 44

Mfg PartNum: SMS-DFN-BKYL-44 

Black/Yellow - 45

Mfg PartNum: SMS-DFN-BKYL-45 

Black/Yellow - 46

Mfg PartNum: SMS-DFN-BKYL-46 

Black/Yellow - 47

Mfg PartNum: SMS-DFN-BKYL-47 

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Good fit and good service
by Anonymous

I bought these shoes for the inner ankle protection. I am very satisfied. They fit well and the closures work well

Reviewed 1/31/2019
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Falls short of being a great shoe
by John
Cycling Enthusiast

I'm a Sidi fanboy from way back. I wanted a pair of shoes that were walkable for use bike touring. Sidi recently released this shoe and the SD15. Both of them miss and both of them could be awesome.

The SD15 has a ridiculously flexible sole that would benefit from the stiffer sole (actually, the nylon shank) this shoe has. This shoe has the inner protection from the cranks which (a) look silly, and (b) are uncomfortable. Either fix the SD15 shoes sole by adding the sole here or get rid of the higher inner ankle piece.

Normally Sidi knocks it out of the park and their boa-style system is really good. The shoe fits all, walks well and looks stupid. I don't know what else to say. I'd call both of these shoes a miss.

Reviewed 7/4/2019
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Another quality Sidi product
by bikeslutintahoe
Cycling Enthusiast
Lake Tahoe CA

Looking for a durable, comfortable mountain bike shoe that you can hike- a- bike in. Found it! Sidi makes good shoes

Reviewed 5/27/2019
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