Tapered roller bearings are uniquely designed to manage both thrust and radial loads on rotating shafts and in housings. As opposed to ball bearings which only handle a single load (steering rotation but not the load of riding the bike down the road).
The small disadvantage of a tapered bearing is the large bearing surface area can cause increased bearing drag versus ball bearings (especially noticeable in un-lubricated applications), the advantage is the same increased surface area provides increased rigidity and overall control in riding conditions creating a more positive feel.
Many companies use taper bearings from the factory on their steering stems, unfortunately Ducati isn't one of them.
The best compliment when upgrading your suspension or a great upgrade for old tired OEM bearings. Helps eliminate head shake and requires less maintenance than stock roller bearings.
Kit comes complete with both upper and lower taper bearings, races, and seals.
CORSE DYNAMICS Tapered Steering Stem Bearing Kit-26mm
Fits all small steer tube early DUCATI: 851-888, SS620-1000ie, Monster 750-900
CORSE DYNAMICS Tapered Steering Stem Bearing Kit: 35mm
Fits most large steer tube on late model DUCATI: 916-998, ST series, Monster S4, 02+ M620ie- 1000ie, S2R-S4RS, Mhe, MTS series, 749-999, Sport Classics, D16, 848-1198, Hypermotards, Streetfighters
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