E-bike, Downhill Thunderbird FR PRO GX Model year: 2026 Model year: 2026 E-bike, Mountain / Downhill Weight: 17.4 kg Suspension: 190/180 mm Wheel size: 27.5″/29″ Add Dartmoor Thunderbird FR PRO GX to comparison Remove Dartmoor Thunderbird FR PRO GX from comparison Comparison full (3 of 3): remove a bicycle to add Dartmoor Thunderbird FR PRO GX