Crank Brothers Cobalt/Cobalt BB £225

Crank Brothers radical hybrid design certainly looks tasty, but is it equally hungry on the trail? By using an alloy back cold-fused onto a stainless steel cover they’ve created a super stiff crank that’s unique in looking better the more you ride it. Although we burst our first set the two replacements we’ve been sent are still going strong despite a long winter of deliberately hammering them. The Truvativ-made chainrings are reasonably long lasting and shift perfectly well even under serious stress. Initial cynicism about the 'Overkill' sealing on the ISIS BB has been replaced with respect for how well the big blue contact seals have kept everything smooth after six months hard labour. The Ti axle Cobalt BB is very expensive compared to Stronglight and SKF though.

BikeRadar score 4/5

Crank Brothers radical hybrid design certainly looks tasty, but is it equally hungry on the trail? By using an alloy back cold-fused onto a stainless steel cover they've created a super stiff crank that's unique in looking better the more you ride it.

Although we burst our first set the two replacements we've been sent are still going strong despite a long winter of deliberately hammering them. The Truvativ-made chainrings are reasonably long lasting and shift perfectly well even under serious stress. Initial cynicism about the 'Overkill' sealing on the ISIS BB has been replaced with respect for how well the big blue contact seals have kept everything smooth after six months hard labour. The Ti axle Cobalt BB is very expensive compared to Stronglight and SKF though.

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