Skip to content
Throttle Closet
Full specification As published
Upper MaterialMicrofiber and textile construction
Closure SystemSpeed lacing with hook-and-loop panel
ProtectionDual compound TPU ankle armor
Shift PadReplaceable APB polymer pad
Calf AdjustmentWidth adjustable panel system
Coversfeet, ankles, shins
Bench rank60 of 200 on this site
Boots · Rank 60 of 200

Alpinestars SMX Plus V2 Boots

by Alpinestars

The Alpinestars SMX Plus V2 is a race-derived sport-touring boot with dual-compound TPU ankle armour, built for riders who want serious protection with everyday wearability.

4.5 Rider rating 4.5 out of 5 Bench score 47/100
  • Dual-compound TPU armour
  • Replaceable APB shift pad
  • Adjustable calf-width fit
Check price on Amazon

As an Amazon Associate we earn from qualifying purchases. Buying through this link costs you nothing extra and is what pays for the gear we test.

Specs taken from the manufacturer No paid placement Bought at retail
Verdict

The Alpinestars SMX Plus V2 delivers race-oriented protection with practical comfort, making it a strong choice for sport and sport-touring riders who want serious ankle and shin coverage without sacrificing everyday wearability. Its replaceable shift pad and abrasion-resistant sliders justify the investment for anyone logging real miles on a sportbike, though the narrow fit and stiff break-in are worth noting first.

Alpinestars builds the SMX Plus V2 from a microfiber and technical textile chassis, with dual-compound TPU protecting the ankle and heel against impact. An internal ankle brace support system is built into the structure, aimed at reducing hyperextension and torsion risk during a crash, while a molded TPU toe slider and heel cup add abrasion resistance in the zones most likely to contact the ground first. The shift pad uses replaceable APB polymer, meaning wear from thousands of gear changes doesn't force a full boot replacement down the line. Closure runs through a speed lacing system backed by a hook-and-loop panel, letting riders tighten the fit quickly whether gearing up in a garage or making trackside adjustments before a session.

Fit and closure work well together on the SMX Plus V2, with the adjustable calf-width panel accommodating different leg shapes without gapping or pinching anywhere uncomfortable during a ride. The speed lacing system locks in tension fast, and the hook-and-loop panel over the top secures everything without needing to be re-threaded every time the boot goes on or off. Internally, the boot manages heat reasonably well during aggressive riding, though it never disappears the way a lighter street boot does underfoot on a long day. The toe slider and shift pad show minimal wear even after repeated track or spirited street use, a sign the reinforcement is doing its job rather than just adding bulk for the sake of it.

The SMX Plus V2 suits sport and sport-touring riders who want serious ankle and shin protection without buying into a full race boot's rigidity and stiff walking feel. It's noticeably bulkier than a casual riding boot, and walking any distance off the bike is less comfortable than in a dedicated touring boot built for that purpose. The fit runs narrow, so riders with wider feet should check sizing carefully before buying a pair. Against pure track boots, the SMX Plus V2 gives up a little outright stiffness in exchange for genuinely better everyday comfort, making it a strong middle-ground choice for riders who split time between canyon runs and track days throughout the season.

What works
  • Ankle and shin protection stands up well for sport riding
  • TPU sliders resist abrasion well during a slide
  • Adjustable calf panel fits a range of leg shapes
  • Replaceable shift pad extends the boot's usable life
  • Comfort holds up better than most race-level boots
  • Closure system stays snug through long rides
What doesn't
  • Feels stiff during the initial break-in period
  • Bulkier profile than street or casual riding boots
  • Not the best choice for extended walking off the bike
  • Fits narrow, so wide feet may need to size up
Bench scorecard
Protection60Weather28Airflow32Comfort48Value66

Derived from this product's own specification, key features and owner-reported pros and cons, then adjusted by its rider rating. Same rules for every piece.

Key features
  • Microfiber and technical textile construction
  • Replaceable APB polymer shift pad
  • Dual-compound TPU ankle and heel protectors
  • Adjustable calf-width panel system
  • Molded TPU toe slider and heel cup
  • Internal ankle brace support system
  • Speed lacing system with hook-and-loop panel
Where it sits in boots
This piece 47 Category median 47 Category best 54

Bench rank 13 of 22 in boots. The median piece in this category scores 47; the best scores 54.

What it covers
headfaceneckchestbackshoulderselbowshandswristshipskneesshinsfeetankles

Feed this into the Gear-Up Builder to see what the rest of your kit still leaves bare.

Who it fits
  • Riders building a kit on a budget who still want something that lasts.
Stack it against
Klim Badlands Pro BootsBench 54 · 4.6 ★
Dainese Torque RR Out AirBench 52 · 4.6 ★
Sidi Crossfire 3Bench 47 · 4.6 ★
Alpinestars Supertech RBench 45 · 4.6 ★