Fox Clothing Union BOA Cycling Shoes - Black - UK 12

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Product Information

Full details

The Fox Clothing Union BOA Cycling Shoes are high-performance clipless mountain bike shoes designed for trail riders who demand a precise fit and superior power transfer. Featuring a durable TPU/ripstop upper and a dual BOA Li2 system, these shoes offer exceptional on-the-fly adjustability and protection, though they require 2-bolt cleat compatibility to function with your pedals.

All features

Age Groupadult
ColourBlack
GenderUnisex
Shoe Size UK12
Shoe TypeCycling Shoes
SeriesUnion BOA
Model Part Number33342-001-47
BrandFox Clothing

Extended Product Information

FAQs

Are these shoes compatible with road bike pedals?

No, these are 2-bolt shoes intended for mountain bike pedals. They are not compatible with 3-bolt road pedal systems.

Can I replace the BOA dials if they break?

Yes, the BOA Li2 system is designed for serviceability. You can contact BOA for replacement kits.

How do I switch the arch support inserts?

Remove the standard insole from inside the shoe and swap the removable arch piece located beneath it.

Are these shoes waterproof?

While the TPU/ripstop upper is durable and water-resistant, they are not fully waterproof and will allow water in during heavy rain or creek crossings.

Does the sizing run true to standard UK sizes?

The Fox Union BOA shoes generally fit true to size. If you prefer a thicker sock for winter, you may want to test them with your preferred sock thickness.

What is the purpose of the D3O insert?

The D3O insert is a shock-absorbing material that hardens on impact to provide cushioning and vibration dampening for your feet.

Troubleshooting

BOA dial feels gritty or won't tighten

Clean around the base of the dial with a soft brush and water to remove fine trail dust or sand.

Foot slipping inside the shoe during climbs

Try swapping to the higher arch support insert or tightening the lower BOA dial slightly more to lock the heel in place.

Cleat clicking or shifting on the pedal

Check that the cleat mounting bolts are tightened to the recommended torque and inspect the cleat for excessive wear.

Pros and Cons

Pros

  • Precise dual BOA adjustment system
  • Excellent power transfer with molded internal stiffening plate
  • Highly durable ripstop and TPU welded construction
  • Effective D3O impact protection
  • Customizable support options for arch comfort

Cons

  • Compatible only with 2-bolt cleat systems
  • May feel stiff during long hikes compared to casual shoes
  • Requires specific pedal systems to operate

Setup, Compatibility & Care

These shoes are designed for use with a 2-bolt clipless pedal system (standard mountain bike cleat pattern). When setting up, ensure your cleats are positioned to align with your natural foot biomechanics to prevent knee strain. For care, wipe the exterior with a damp cloth after rides to remove mud and grit. If the shoes become soaked, remove the insoles and stuff them with newspaper to air dry slowly; avoid direct heat sources like radiators, as these can damage the TPU bonding or the BOA mechanism. Regularly check the BOA dials for debris and ensure the laces move freely.

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