New or replaced tube punctures quickly
Inspect rim tape, check for sharp debris/glass. Confirm correct tube/tire size. If new tube fails, they may replace under warranty per attached policy.
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Tube fails shortly after starting use
Inspect for production flaw vs. puncture. Replace tube; request warranty replacement if obviously defective (not regular puncture).What is Head tube angle, seat tube angle, stack, and reach of D35 and ST
Please refer to the following table for the head tube angle, seat tube angle, stack, and reach values. A= Reach B= Stack C=Head tube angle D= Seat tube angle A B C D D35 – 20’’ 400mm 682mm 71 72.6 D35 – 18’’ 377mm 681mm 71 72.6 D35 – 16’’ 331mm ...Flats soon after use or trouble removing/installing tube
Inspect for rim strip misalignment or tire bead issues. Use proper tire lever technique; if tube seems defective out of box, contact ENVO with photos for replacement.Rear tire repeatedly goes flat, especially soon after new bike assembly or on rough terrain
Check for embedded debris, rim strip defects, or improper assembly. Use valve extender. Replace tube if punctured. Contact ENVO if tube seems defective out of box.Wheel, axle, or trike rear bearings quickly grind, stick, or break
Lift wheels and spin/feel for roughness. Replace faulty bearings. Contact ENVO if recurrent in new units.