![]() Hambini, thank you for sharing your work on this topic. The bearing surfaces are costly to replace and are a proprietary component. In the longer term, bearings will wear out and for this reason, Shimano hubs are not recommended unless the cyclist is willing and able to carry out regular maintenance. The angular contact Shimano hubs do quite badly in this test because the contact angle lends them to high levels of axial load, these wheels will be extremely stiff and predictable when cornering but the trade off is the higher linear friction. The Miche Primato hubs are a good budget option but the small axle diameter is not favourable in the longer term despite having the overall lowest friction, it should be noted that the test example had retrofitted bearings so the exact figure from the factory may be higher or lower. These have low levels of friction, are well made and use decent quality bearings from the factory. Generally speaking, the Hambini recommended hubset to use would be the Carbon-TI. It is more advisable to wait until the bearings have worn out first and then retrofit. It is not cost effective to replace OE bearings straight from the factory unless the rider requires the ultimate in marginal gains.
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