ISO 2013 Stumpjumper comp FSR 29er chainstay Singletracks Mountain Bike News, Reviews, MTB Trails and Community › Protected: Forums › Mountain Bike Forum › ISO 2013 Stumpjumper comp FSR 29er chainstay Tweet Add to Flipboard Magazine. Viewing 0 reply threads Author Posts May 5, 2020 at 11:37 #337627 Horn993 <p style=”text-align: right;”>I purchased a used 2013 Stumpjumper and am looking for a S121500002 chainstay new or used</p> Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.