Alpinestars SP-X BOA Boots - Black
EU 44
$399.95
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Color: Black
In stock — dispatched in 1–2 business days
Estimated delivery
Ways to pay
- Shop Pay Installments — 4 interest-free payments on orders $50–$999.99, or pay monthly.
- Afterpay — 4 interest-free payments, generally over six weeks.
Also credit and debit cards, PayPal, Cash App Pay, Apple Pay and Google Pay. Choose how to pay at checkout.
Installments are subject to approval.
- FreeUS shipping on this item
- 90-dayreturns, no restocking fee
- GenuineAlpinestars, authorized dealer
Not sure about your size?
Check the size guide below, or send us the size you usually wear and a specialist at the dealership helps you pick the right one. No charge, no obligation.
See the size guide ↓
Ask a specialist →
Need help?
Not sure which size to order? Call the parts counter at Riders Miami Motorsports and we help you pick.
Tap to call · +1 645-239-3174Product details
- SP-X 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 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 Rideknit® material and knitted mesh, plus seamless thermo-welded parts
- The lower features a TPU heel counter, toe slider, and the Alpinestars Transversal Protection Frame (TPF) 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
- For protection, the SP-X has an integrated shin impact protector, dual-density ankle discs, plus TPU shift pad and toe slider reinforcement
- For comfort, the knitted areas on the front and back flex points offer great freedom of movement, while the PU midsole with integrated double cushioned heel compound and removable OrthoLite® insock, provide great walking comfort
- In and out is facilitated by a medial zip combined with the BOA speed lace system for compact and precise closure
- SP-X boots are perfect for those sport riders looking for coverage and protection but without the full race boot, over the pant look
| Brand | ALPINESTARS |
|---|---|
| Category | Footwear |
| Size | EU 39, EU 42, EU 44, EU 46, EU 47, EU 38, EU 40, EU 41, EU 43, EU 45, EU 48 |
| Country of origin | Vietnam |
Part numbers by option
Each size is a separate manufacturer part. Pick your size above and we ship that exact part number.
| Size | Part number | UPC |
|---|---|---|
| EU 39 | 3401-1053 | 8059347141213 |
| EU 42 | 3401-1056 | 8059347141244 |
| EU 44 | 3401-1058 | 8059347141268 |
| EU 46 | 3401-1060 | 8059347141282 |
| EU 47 | 3401-1061 | 8059347141299 |
| EU 38 | 3401-1052 | 8059347141206 |
| EU 40 | 3401-1054 | 8059347141220 |
| EU 41 | 3401-1055 | 8059347141237 |
| EU 43 | 3401-1057 | 8059347141251 |
| EU 45 | 3401-1059 | 8059347141275 |
| EU 48 | 3401-1062 | 8059347141305 |
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Free US shipping over $49
$9.95 flat rate under $49, free above it. Most orders dispatch within 1–2 business days and arrive 3–5 business days after that.
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Ships from five US warehouses
Your order leaves whichever warehouse is closest to you, which is what keeps transit times short across the country.
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Wrong size? Exchange or return it
Send it back within 90 days for a different size or a refund. It must be unworn, with all tags and labels. Return shipping is paid by the customer; there is no restocking fee.
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90-day returns, no restocking fees
Return any unused item in its original packaging within 90 days of delivery.
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Authorized dealer, genuine gear
Every item is sourced directly from the manufacturer or their authorized distributor — this one from Alpinestars.
Measure yourself, then compare with the general chart below. Between two sizes? Send us your measurements and a specialist tells you which size to order.
General footwear size chart General guide
Size conversion; JP size is your foot length in cm. This model's US and EU sizes match this table. General size guide based on Alpinestars' MX boot conversion.
| US | EU | JP / foot length |
|---|---|---|
| 5 | 38 | 24 cm |
| 6 | 39 | 25 cm |
| 7 | 40.5 | 25.5 cm |
| 8 | 42 | 26.5 cm |
| 9 | 43 | 27.5 cm |
| 10 | 44.5 | 29 cm |
| 11 | 45.5 | 29.5 cm |
| 12 | 47 | 30.5 cm |
| 13 | 48 | 31.5 cm |
| 14 | 49.5 | 32.5 cm |
| 15 | 51 | 33.5 cm |
| 16 | 52 | 34.5 cm |
What riders say
Verified Google reviews for Riders Miami Motorsports, our sister store in North Miami Beach
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Why buy from Riders Miami
Riders Parts is the parts counter of Riders Miami Motorsports — a full motorcycle dealership in North Miami Beach with a showroom and a service department. Not sure about a size? The team at the parts counter helps you pick one before you order.
Visit the dealership (opens in a new tab)- A real dealership Riders Miami Motorsports: showroom and service department at 1926 NE 154th St, North Miami Beach, FL.
- Ships from 5 US warehouses Dispatched from whichever of our five US warehouses is closest to you, in 1–2 business days.
- Help with sizing Send the size you wear in another brand, or your measurements, and we tell you which size to order.
- Talk to a person +1 645-239-3174 · parts@ridersmiami.com · Mon–Sat 9–7, Sun 10–5.