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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
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Description
ALPINESTARS SMX+ Vented Boots - Black - US 12.5 / EU 48 2221119-10-48The SMX Plus v2 Boot perfectly blends sleek sports styling with advanced protection features developed in Alpinestars performance footwear department. The durable and light microfiber upper is reinforced with a rugged polymer protector and the exclusive Multi Link Control (MLC) system prevents ankle torsion while offering freedom of movement. Advanced microfiber upper construction for lightweight high performance protection and superb levels of
- The SMX Plus v2 Boot perfectly blends sleek sports styling with advanced protection features developed in Alpinestars performance footwear department. The durable and light microfiber upper is reinforced with a rugged polymer protector and the exclusive Multi-Link Control (MLC) system prevents ankle torsion while offering freedom of movement.
- Advanced microfiber upper construction for lightweight high performance protection and superb levels of flexibility
- Front flex area is constructed with a soft microfiber for improving abrasion resistance and natural forwards and backwards movement
- Flexible accordion microfiber on Achilles gives enhanced natural movement
- Strategically positioned ventilation area in heel and shin TPU for breathability and airflow
- Outside entry/exit has stretchable accordion panel for a close fit and ease of entry and removal. Contoured high modulus shin plate protector gives superior impact and abrasion resistance
- An evolution of Alpinestars unique Multi-Link Control system provides advanced external protection and support for ankle articulation, limiting hyper-torsion, hyper-extension and hyper-flexion as well as providing Achilles and ankle impact protection
- Wide heel counter with lateral ventilation extends to the ankle and is combined with a shock absorbing padded insert and self-molding ankle protectors
- Dual density TPU replaceable toe slider with screw-in assembly providing protective coverage around the outer toe area
- Replaceable heel slider and external side heel slider are positioned to dissipate and absorb shock and promote sliding during an accident
- Large front and rear asymmetrical accordion zones are optimized to maximize flexibility for maximum comfort and improved safety
- Micro adjustable ratchet top closure stows tab end
- Advanced synthetic forefoot lining, laminated with open cell foam for shock absorption and highly breathable lining in ankle and leg areas for comfort Alpinestars anatomical and replaceable countered EVA footbed provides arch support and forefoot pedal feeling
- Durable sole, designed for improved riding feel, features evenly textured rubber for consistent grip
- Inner instep speed lacing closure and unique lateral zipper offer precise and secure fit
- Alpinestars Lace-Lock System is constructed from an advanced polymer resin to provide a quick, precise and secure closure
- Hook and loop tap locks the zip pull close, keeping in flat and safe
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Speed Fast
Love love all these products my engine runs like a Porsche I’m serious I have a 2000 Honda civic dx as well as 1996 Chevy Tahoe LT I love my vehicles especially when I pour this fabulous liquid into my vehicles five stars
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Reviewed in the United States on July 20, 2025
★★★★★ 5
Great product
Great product easy to use.
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Reviewed in the United States on January 16, 2026
★★★★★ 4
Better
It does quite lifters a little, not as much as I would like for my 4 cyclinder turbo engine
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Reviewed in the United States on August 2, 2024
★★★★★ 5
Encantado con el producto
Reparo inmediatamente mi falla de carburador por suciedad en mi 1989 mazda b2200.(muchos años sin usar y claro,desmonte primero el tanque de gas afuera y lo limpie)
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Fuel and repair costs are rising…
Why not make your (overpriced) fuel work for you? If you appreciate your internal combustion engine, and want to help avoid costly repairs or maintenance to your fuel injector system, you can!
To be honest the quality of fuel is often questionable (I’m looking right at you, ethanol). Modern fuel injection systems are squeezed for every iota of fuel economy and performance. It makes sense to be a little proactive with the preventative maintenance, it’s just good sense.
Adding Jectron to your fuel is a smart, and economical measure that you can take, to keep your injection system running as designed.
It won’t damage your emissions components, it won’t harm your fuel systems more delicate parts (O-rings, plastic tubing, filters, etc.).
There are plenty of great options out there, such as Chevron’s Techron, and a handful of other reputable products. I used to be a very strong advocate of Techron (it’s still my backup choice). However, after witnessing Jectron solve a battery of problems on a variety of vehicles, I’m a convert.
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Reviewed in the United States on March 20, 2023