Test knee padsIon K-Pact AMP HD - our favourite for bike park use

Stefan Frey

 · 11.06.2024

The K-Pact from Ion has already impressed in previous tests. The current version has been upgraded with slide plates over the knee
Photo: Stefan Frey

In this article, we use so-called affiliate links. With every purchase through these links, we receive a commission from the merchant. All relevant referral links are marked with . Learn more.

Solid riding technique and good physical fitness are the best way to prevent falls. In an emergency, however, only knee pads really protect against injury. Ion has given its classic K-Pact AMP an update. We took a closer look at the new version of the solid bike park protector.

Topics in this article

Ion K-Pact AMP HD knee pads - Features

The Munich-based award-winning knee pads and equipped with a longer protector that now extends to the shin. To prevent the sleeve from slipping in the event of a fall, a slide cap has been placed over the knee, which should also improve durability.

Thanks to the slide plates, the K-Pact should fit even better and not slip off the knee in the event of a fallPhoto: Stefan FreyThanks to the slide plates, the K-Pact should fit even better and not slip off the knee in the event of a fall

Ion has fitted the K-Pact with large EVA pads on the sides. Two Velcro fasteners, one on the thigh and one on the back of the knee, as well as silicone grippers are designed to secure the protector to the knee. The clearly visible side labelling helps with donning. The pad can be removed for washing. A small mesh trim in the hollow of the knee provides some ventilation.

Thanks to the obvious labelling, you don't have to search for the right page for longPhoto: Stefan FreyThanks to the obvious labelling, you don't have to search for the right page for long

This is how well the Ion K-Pact AMP HD protects

The K-Pact knee pad achieves excellent results in the impact test in the centre of the knee. Here remains a Residual force of just 9.47 kN left. That is a very good value. The protection then drops slightly in the lateral impacts, but is still at a very high level overall with an average of 11.52 kN. The curve also shows no peak, but rather a long, flat peak - just as it should be.

In our comparison, there are slightly better protectors, but the force curve is already very goodPhoto: Stefan FreyIn our comparison, there are slightly better protectors, but the force curve is already very good

Do you want to play it safe on the trail, but are you looking for a protector that is still easy to pedal? Then you'll find what you're looking for in our test of 12 lightweight knee pads.


Fit & comfort

You notice the extremely snug fit of the Ion as soon as you try it on. On the one hand, this is due to the very strongly pre-shaped protector, which fits neatly around the knee - as a result, the K-Pact knee pad fits like a second skin without constricting. Secondly, the two ideally positioned Velcro straps securely fasten the protector to the knee.

The Velcro straps are easy to use and optimally positioned. They are also responsible for the solid fit of the K-PactPhoto: Stefan FreyThe Velcro straps are easy to use and optimally positioned. They are also responsible for the solid fit of the K-Pact

The Ion is also surprisingly comfortable when pedalling. No pinching, no pulling - at least on short pedalling sections. Only the ventilation is not very good. Even the small mesh insert in the back of the knee doesn't help much. The Ion is one of the warmer models in the comparison. Its bombproof fit in conjunction with the Slide Plate also pays off in the event of a fall: The K-Pact stays firmly in position without slipping on contact with the ground.

With its extensive padding, the K-Pact gives the rider an enormously secure feeling. However, you have to accept compromises when it comes to ventilationPhoto: Stefan FreyWith its extensive padding, the K-Pact gives the rider an enormously secure feeling. However, you have to accept compromises when it comes to ventilation

Ion K-Pact AMP HD knee pads - Details & Price

  • Price 169,99 Euro >> available here at a reduced price
  • Weight (M) / Sizes 515 g / S-XL
  • Country of manufacture China
  • Equipment Velcro on OS and calf; silicone cuffs; aramid slide cap; EVA padding on sides; mesh in hollow of knee; long protector; pad can be removed for washing
  • Protector / protection level SAS-Tec / Level 2 / K Type B
  • Residual force (centre / bottom / side) 9.47 / 13.64 / 11.45 kN
The K-Pact from Ion has already impressed in previous tests. The current version has been upgraded with slide plates over the kneePhoto: Stefan FreyThe K-Pact from Ion has already impressed in previous tests. The current version has been upgraded with slide plates over the knee

Conclusion & evaluation

Although the Ion doesn't deliver the best values in terms of residual force, it sits extremely snugly over the knee and, thanks to its slide plate, doesn't slip down even in the event of a fall. Two well-placed Velcro straps, extensive padding and protection up to the shinbone provide an enormous amount of safety. Thanks to its anatomically pre-shaped sleeve, the K-Pact can also be used to pedal a few metres, but the back of the knee may pinch slightly. One small drawback: the generous padding comes at the expense of ventilation. Our tip for long days in the bike park.

The Ion delivers very good values in almost all categories and is our favourite for bike park usePhoto: Stefan FreyThe Ion delivers very good values in almost all categories and is our favourite for bike park use

Test: 8 knee pads for the bike park compared

Share article:

Stefan Frey is from Lower Bavaria and loves the mossy, loamy trails of the Bavarian Forest as much as the rugged rock of the Dolomites. For technical descents, he is prepared to tackle almost any ascent - under his own steam. As an accessories specialist, he is the first port of call for questions about equipment and add-on parts, while as head of copywriting he sweeps the language crumbs from the pages of the BIKE print editions.

Most read in category Equipment