FITMENT NOTESTR16213289 (dual flange) sits directly behind front idler. One per side.ABOUTTNT Heavy Duty Track RollerSPECIFICATIONSFitmentJCB 1CXTBrandJCBDurabilityHeavy DutyUndercarriage TypeTrack RollerConditionNewWarranty12 Months / 1,000 Hours - 100%...