The complete kit to upgrade your TTR 110 front forks. Included in this is kit is the following:  TTR 110 Fork Springs - Part #650-ytr-1105 TTR 110 Damping Rods - Part #634-ytr-1101 Fork Oil (Select Weight)  Fork Oil 10 weight (stock) - 100lb and under rider 15 weight - 100lb-150lb rider 20 weight - 150lb+ riders and int/pros Fork Springs - TTR110, 08-Present Custom-developed by BBR for adult riders. Pre-set and stress relieved for long life. Fits TTR 110 stock forks. Increased spring rate for adults Preset and stress relieved for long life Custom wound from aircraft quality spring steel Fork Springs - TTR110, 08-Present Instructions A Fork Springs - TTR110, 08-Present Instructions B BBR TTR110 Damping Rods These front fork damping rods replace the stock damping rods to increase travel and provide increased damping control for adult sized riders. Slows rebound and increases compression damping for a firmer more controlled ride. Increases travel 1.125" from stock Better damping control with stiffer springs and adult sized riders CNC machined from forging