1、Applicable Model: Rear inner tube is replacement for Suzuki DRZ110 DS80 JR80 RM50 RM60 RM65 PW80; fit for XR50 XR50R XR70 XR70R CRF50. 2、Compatible Tire Size: Fits most with 12in dirt pit bike tires wheel hub; fit 80mm(3.15in) wide tire,fits on size: 3.00‑12, 300‑12, 3.00x12 and 80/100‑12 inch rear tire. 3、Material: Made of a thick rubber mixture, inner tube with excellent impact and shock absorption properties, puncture resistance and explosion protection. With a durable rustproof bent stem. 4、Stable Tube: Replace the inner tube when your dirt pit bike gets a flat tire, which allows you to quickly get back on the road with safe driving assured. 5、Easy to Install: With precise build and size, the rear inner tube perfectly matches the dirt pit bike and is easy to install with no additional changes. Item Type: Rear Inner Tube Kit: 2 pieces Material: Metal + rubber Fitment: Fit for XR50 XR50R XR70 XR70R CRF50 CRF50F CRF70 CRF70F CRF110 CRF110F CR60 CR60R CX65 Fit for KLX110 KLX110L KX60 KX65 Replacement for Suzuki DRZ110 DS80 JR80 RM50 RM60 RM65 PW80 TTR90 TTR90E TTR110E YZ50 YZ60 Replacement for Baja DR70 Replacement for Coolster QG-214FA QG-214FA-3 QG-214S QG-214X-W125 QG-214X-X125 QG-214XR-2 QG-215 Replacement for Apollo SSR SDG Replacement for Taotao 125 TC65 60 65 MC65. Fits most with 12in dirt pit bike tires wheel hub , Fit 80mm(3.15in) wide tire,fits on size: 3.00-12, 300-12, 3.00x12 and 80/100-12 inch Rear tire 2 x Rear Inner Tube