Stem Rider +/-7D 31.8 100Mm Black 6061 T6 Alloy FREE shipping within Australia over AU$100.00 In stock. Available via Buy Online Only Share Loading Facebook Like button... Stem Rider +/-7D 31.8 100Mm Black 6061 T6 Alloy FREE shipping within Australia over AU$100.00 In stock. Available via Buy Online Only Share Loading Facebook Like button...