Buy Rock Shox Spares Spare - Air Shaft Reba/Sidb 100Mm Travel 27.5"/29" (Can Be Used To Change Travel To 100Mm On 27.5"/29" Solo Air, Not Compatiblewith Dual Air) 100Mm
Amazon.com : RockShox 2012-14 Reba A1-A3/SID B 26" A1-A3 Dual Air Spring Assembly and Air Top Cap Kit : Bike Suspension Service Parts : Sports & Outdoors