Large 19" Rocky Mountain ETSX full suspension frame. Adjustable rear travel 4-5". Fox RP23 shock with pro pedal. The shock holds air and does not leak. The linkage is in good shape. No cracks or damage. It does have some cable rub. Great frame for cross country. 135mm QR. Very new Shimano XT threaded bottom bracket. 1 1/8 straight head tube.