Is the SP-X BOA good for walking off the bike?

Yes. The asymmetric heel and flexible sole are designed for a natural stride, and owners say it walks far better than stiff race boots.

How does it compare with a full race boot?

It is lighter and easier to walk in, but the mid-height cut gives less shin and calf coverage than a full-height race boot.

Is the knit upper waterproof?

No. The Rideknit and mesh upper is breathable, not waterproof, so it suits warm and dry riding better than rain.

Does the BOA dial fit over riding pants?

The boot is cut to fit under tech riding pants, so the dial sits close to the ankle and does not catch on the pant leg.

What is the TPF sole?

It is Alpinestars' Transversal Protection Frame, a sole structure that resists bending and twisting in a crash.

Can the BOA wire be replaced?

BOA systems are serviceable, but replacing the wire takes patience; some riders find it a hassle.

Where is the Alpinestars SP-X BOA Boot cheapest?

At バイクマン, for $283.00, 29% under what the other stores charge, as of our latest check.

What do buyers say about the Alpinestars SP-X BOA Boot?

Rated 4.3 out of 5 from 23 ratings.

Where can I buy the Alpinestars SP-X BOA Boot?

34 stores we checked sell it, including Moto Liberty, Atomic-Moto, バイクマン, Cascade Tire & Racing Services, Motorhelmets.com | Shop for Moto Gear.

Alpinestars SP-X BOA Boot

Best price now

$283.00at バイクマンChecked 28 min ago

29% under what the other stores charge

Compared across 34 stores. Prices are checked against each store and labelled with when.

Visit バイクマン

What reviewers say

4.3 / 523 ratings

Riders rate the SP-X BOA well overall, praising the easy BOA fit and comfort on and off the bike. Some question long-term durability of the knit upper and wire closure.

What people mention

BOA closurePraisedRiders like the dial for fast, even tightening and easy on/off.
ComfortPraisedOwners say the boots are comfortable on and off the bike.
BreathabilityPraisedThe Rideknit and mesh upper keeps feet from getting stuffy in warm weather.
Build durabilityMixedSome worry the knit upper and wire closure may not hold up like leather.
ProtectionMixedThe TPF sole and sliders are well regarded, but the mid-height cut leaves less shin coverage.

About the Alpinestars SP-X BOA Boot

The SP-X BOA Boots are a sleek sport boot designed to fit under tech riding pants and provide superior walking capability. Optimized for the sport and sport touring rider, the SP-X BOA Boots are compact, mid-height boots with premium levels of protection and comfort on and off the bike. The upper is constructed from a combination of advanced microfiber, ultra-soft Rideknit® material and knitted mesh, plus seamless thermo-welded parts. The lower features a TPU heel counter, toe slider, and the Alpinestars TPF Transversal Protection Frame on the sole, allowing for high levels of protection against impacts and any bending or twisting. Additionally, the sole also features an all-new design with an asymmetric back heel to facilitate the rider’s natural stride and promote off-bike stability.

Construction

Advanced microfiber and ultra-soft Rideknit® calf.

• Exclusive new Alpinestars’ rubber sole.

Key features

TPU heel counter, shift pad, toe slider, and Rotor protection.

• Dedicated side BOA speed closure system engineered for optimal closure and personalized fit.

• Front bellow made in Lycra co-injected with soft TPU for enhanced comfort and durability.

• Dual heel cushion pads.

• Integrated PU heel midsole.

• TPU protective parts.

• Removable anatomic EVA footbed with Lycra lining.

• Engineered profile for comfort.