Continental Hydrotal Tire - 29 x 2.40 Tubeless Folding BLK SuperSoft Downhill Casing E25Continental Hydrotal Tire 29 x 2. 40 Tubeless Folding Black Super Soft Downhill Casing E25. Hydrotal is a specialist tire for downhill and a super soft compound option for racing. Balances grip and rolling resistance with a self cleaning tread that ensures continuous grip when youre shredding through muddy slippery conditions. Carcass construction is robust and impervious against damage and penetration from foreign objects resulting in a versatile low