Articoli

What’s special about KRU Hubs?

One of the key technological advancements we have introduced is the KRU wheel hub. In fact, there aren’t many companies nowadays doing innovation on the hubs. In practice, many wheels on the market today are little more than a selection of existing products put together and a sticker applied.

Our approach for making high quality carbon wheels has been radically different. We’ve literally designed our products from the ground up, including the hubs.

KRU Hub mounted on a wheel

KRU hubs, entirely engineered by KRU, offer performance comparable to hubs with ceramic bearings while on the other hand maintaining exceptional durability at an affordable price point.

The technology is supported by Enhanced Bearings Performance, a patented revolutionary hub design & assembly, and Self Adjusting Spokes, a clever design which allows spokes to perfectly align from the hub flange to the rim.

Enhanced Bearings Performance (EBP)

Enhanced Bearings Performance EBP Technology KRU

Enhanced Bearings Performance is a completely reingeneered hub design & assembly. Main benefits include:

  • Hubs unaffected by over-tightening of the quick release, actually rolls faster
  • No maintenance required for 200.000 km
  • Low friction and rolling resistance

Read more here: http://krucycling.com/2017/07/02/about-enhanced-bearings-performance-ebp-kru/

Self Adjusting Spokes (SAS)

Self Adjusting Spokes – SAS Technology

The Self Adjusting Spokes technology allows spokes to perfectly align from the hub flange to the rim to obtain the following benefits:

  • The wheel supports higher tension
  • Higher wheel performance in terms of stiffness and stability
  • Greater durability of the spokes

Read more here: http://krucycling.com/2017/07/05/about-self-adjusting-spokes-sas-k-elements-kru/

Personalisation

KRU hubs can be personalised with hub caps available in many colours

 

About Self Adjusting Spokes (SAS)

Spokes failure is the most common maintenance issues affecting road cycling wheels for many cyclists. Tackling this problem quickly become a priority in our effort of completely redesigning wheels. Spokes are central in making sure that the structure of a wheel maintains its rigidity. Causes of their failures include imperfect alignment, an incorrect amount of tension because of improper setup or loss during normal use.
To create the SAS technology we have drilled an hemispherical groove in the hub flange and added a ball shaped washer placed underneath the spoke head. This design allows spokes to perfectly align from the hub flange to the rim increasing their ability to withstand tension loads, maintaining the shape of the wheel at lower tension and decreasing the risk of wheel failure.

Self Adjusting Spokes – SAS Technology

Major benefits of the SAS technology include higher stiffness which maximises power transfer, higher durability, lower risk of broken spokes and an improved riding experience, especially on fast corners. Our tests have demonstrated an ability of KRU wheels to reach very extreme lean angles at corners

  • The design allows spokes to perfectly align from the hub flange to the rim supporting higher tension
  • Higher wheel performance in terms of stiffness and stability
  • Greater durability of the spokes, less maintenance required
  • Faster average speed while riding corners
  • Higher maximum corner lean angle (more than 45°)

About Enhanced Bearings Performance (EBP)

In recent years the development of cycling wheels has been predominantly focused on assembling together parts from different manufacturers or at most applying minor modifications to the shape of the rim. The industry appears to have failed to introduce meaningful technology advancements and to have completely forgotten the central component of a wheel’s structure: the hub.

Our approach has been diametrically opposite, the hub is where we’ve started the development. During our research we noticed two big areas for improvement over existing products on the market. One is an imperfect alignment of the bearings which often causes durability issues, especially when the quick release skewer is tightened excessively. The other, is that the vast majority of cyclists never apply any maintenance to the wheel, even less to the hub. This means that there is a substantial amount of cyclists whose wheels and hubs are literally slowing them down.

To address these issues we have completely redesigned the structure of a wheel hub and patented it under the name of Enhanced Bearings Performance (EBP). The KRU hub assembly process is also unique in the industry. We use a full 5 axis CNC machined production process in a single manufacturing station while bearings are all inserted at once with optimal alignment and controlled preload.

Enhanced Bearings Performance EBP Technology KRU

EBP brings numerous benefits. Firstly, our hubs provide minimum friction and rolling resistance. The performance is comparable to those with ceramic bearings with the distinctive difference that we are able to guarantee exceptional durability and much better value at a lower price point. In fact, KRU hubs are guaranteed to require no maintenance for 200.000 km. An additional benefit is that our product is unaffected by over-tightening of the quick release skewer. Effectively, KRU hubs make you go faster and maintain their performance for much longer than any other product on the market.

  • Completely rethought hub design and assembly
  • Unaffected by overtightening of the quick release (actually rolls faster)
  • No maintenance required (200.000 km guaranteed)
  • Fast rolling resistance and lower friction – comparable to ceramic bearings
  • Performs well where other products fail