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SCHWALBE Black Jack 20 x 1.90 Active Wired Kevlar Guard SBC Black- Skin 450g (47-406) | £14.95 | Wheel | Tyres & Tubes 20" | Southwater Cycles
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What the hell happened to my knob? What should I do? Schwalbe Black Jack 26x2.25 with less than 250km on them : r/bikewrench
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