Sparco K-Rapid (Lace Closure) Kart Boots Black and White 1-BKB0003B-GSM Performance Sparco K-Rapid (Lace Closure) Kart Boots From £180.00 Incl. VATFrom £150.00 Excl. VAT
OMP KS-2X Kart Boots-KC0-0839-Black-GSM Performance OMP KS-2X Kart Boots From £121.20 Incl. VATFrom £101.00 Excl. VAT

Sparco K-Rock Kart Boots

From £101.00 Excl. VAT

Inc/Exc VAT
Found this product at a lower price?
SKU: BKB0001B0 Category:

Free UK shipping on all orders over £100

  • Personalized order tracking
  • Over 20 years of technical experience
  • In-store appointments available

 

Guaranteed Safe Checkout

Designed for high-performance karting, the Sparco K-Rock Kart Boots deliver lightweight comfort and durability, keeping you at peak performance during every race. Featuring a breathable 3D mesh upper and microfibre leather construction, these boots are engineered to reduce heat build-up and perspiration, ensuring your feet stay cool and dry even in intense conditions. The reinforced heel and cushioned insole provide exceptional support and reduce foot fatigue, keeping you focused and comfortable through long racing sessions. A high-grip rubber sole enhances pedal control, delivering precise feedback and a strong connection with your kart for superior handling.

Key Features:

  • Breathable Microfibre Leather with 3D Mesh: Combines durable materials with excellent airflow to reduce heat and sweat, ensuring a cool, comfortable drive.
  • Antibacterial Inner Lining: Prevents odours and promotes freshness, keeping your feet hygienic during long races.
  • Reinforced Heel Section: Provides added protection and support, reducing ankle fatigue and enhancing stability for endurance.
  • Abrasion-Resistant Side and Toe Pads: Strengthens key areas to withstand wear and tear, ensuring long-lasting durability in high-impact conditions.
  • Elasticated Rear Heel Bellows: Improves flexibility and natural foot movement, reducing strain and enhancing comfort.
  • Shock-Absorbing Anatomic Insole: Cushioned footbed absorbs impacts, enhancing pedal feel, sensitivity, and control.
  • High-Grip Rubber Sole: Delivers superior traction and pedal control for stability in demanding karting situations.
  • Velcro Closure with Lace-Up System: Ensures a secure, adjustable fit for enhanced ankle support and stability throughout the race.

Additional information

Approval

Brand

Colour

, , ,

Shoe Size

, , , , , , , , ,

Product Type

Material

Karting boot size guide

Kart boots use exactly the same size ladders as race boots, which means the same trap applies: Sparco and OMP share one ladder and Alpinestars run their own. The same UK size is a different EU number depending on which you buy.

Measure the foot

Two minutes with a sheet of paper beats any conversion chart, and it matters more for a kart boot than a road shoe because the sole is thin and the fit is close.

1Stand on paper against a wallHeel to the skirting, weight on the foot. Sitting down reads short.
2Mark the longest toeNot always the big toe. Measure heel to mark in centimetres.
3Do both feetWork from the bigger one.
4Wear kart socksThicker than everyday socks and they take up real room.

Foot length to size

Sparco and OMP both publish foot length against their sizes and never disagree by more than three millimetres.

EU UK Sparco length OMP length
36 3.5 23.7 cm 23.5 cm
37 4 24.3 cm 24.5 cm
38 5 25.0 cm 25.0 cm
39 5.5 25.7 cm 25.5 cm
40 6.5 26.3 cm 26.0 cm
41 7 27.0 cm 27.0 cm
42 8 27.7 cm 27.5 cm
43 9 28.3 cm 28.1 cm
44 9.5 29.0 cm 28.7 cm
45 10.5 29.6 cm 29.5 cm
46 11 30.3 cm 30.2 cm
47 12 31.0 cm 31.0 cm
48 13 31.6 cm 31.5 cm

Alpinestars do not publish foot lengths. Use the EU column here to get into the right area, then read your UK size off the table below.

The same UK size, two different EU numbers

Alpinestars carry four half steps that Sparco and OMP do not: 40.5, 42.5, 43.5 and 45.5. From UK 7 upwards their EU numbers stop lining up with everyone else.

UK Sparco and OMP Alpinestars
3.5 36 –
4 37 37
5 38 38
5.5 39 –
6 – 39
6.5 40 40
7 41 40.5
7.5 – 41
8 42 42
8.5 – 42.5
9 43 43
9.5 44 43.5
10 – 44
10.5 45 –
11 46 45.5
12 47 47
13 48 –

A dash means that brand does not make a kart boot in that size. Order by the UK size, because it is the one we have checked against each brand’s own ladder for every product on the site.

Overshoes

The Sparco rubber and neoprene overshoes go over your kart boots rather than replacing them, so size them to your boot and not to your foot. The slip-on rubber pair are sold S to XL against a boot size, and the neoprene pair on the normal EU ladder.

How a kart boot should fit

Close, with no heel movement

Toes near the end and no sliding at the heel. A kart pedal box gives you very little room, and a boot with growing space moves on the pedal exactly when you do not want it to. Between two sizes, take the larger and let a thicker sock take up the difference.

The sole is deliberately thin

There is no cushioning, because the point is feeling the pedal through it. A kart boot that feels flat standing in the showroom is doing its job and will not soften into a walking boot.

Buying for a child

Size to the measurement today rather than to next season. A loose boot slips off the pedal, and they will have outgrown it before the extra room becomes useful.

Not sure between two sizes?Send us the foot length in centimetres and the boot you are looking at and we will tell you which to take. Call 0115 989 3488 or email Sales@GSMPerformance.co.uk.

Sparco from sparco-official.com. OMP from the size chart on their Tecnica shoe product page. Alpinestars UK labels from the UK retail convention checked against three UK retailers on 1 August 2026, which is what our listings carry. All checked 2 August 2026.

Related products

  • Alpinestars Tech 1-K Start V2 Kart Boots
    SALE
    0% pay-in-3

    Alpinestars Tech 1-K Start V2 Kart Boots
    From £89.00 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
  • Sparco K-Rapid WP Kart Boots 1-BKB0008B0-GSM PerformanceSparco K-Rapid WP Kart Boots 2-BKB0008B0-GSM Performance
    SALE
    0% pay-in-3

    Sparco K-Rapid WP Kart Boots
    From £162.00 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
  • Alpinestars Supertech K Kart Boots-Black 1-271-0526-GSM PerformanceAlpinestars Supertech K Kart Boots-Black 2-271-0526-GSM Performance
    SALE
    0% pay-in-3

    Alpinestars Supertech K Kart Boots
    From £182.00 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
  • Sparco Slip On Rubber Overshoes – GSM PerformanceSparco Slip On Rubber Overshoes – GSM Performance
    SALE

    ,

    Sparco Slip On Rubber Overshoes
    From £33.00 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page