The Surge is a great all round frame for anyone who likes to go hard in all kinds of conditions. It’s a pure freeride hardtail with a slack head angle and lower bottom bracket. Perfect for new school freeride, yet at the same time comfortable on longer rides and great for dirt jumping.  NS believe that steel is the best material for this kind of frame giving the bike a great feel and making it absolutely bombproof. It will work correctly with 140 – 170 mm forks and 650B or 26” wheels. For 2015 the frame is compatible with a 30.9 seatpost which means you can fit your favourite dropper post easily.  Material: Custom butted 4130 cromolyRecommended fork travel: 140-170mmHead tube: ZS semi integrated (ID44mm), fits forks with standard 1-1/8” steerer tubes * forks with taper 1.5 – 1-1/8” steerer tubes can fit ZS44/44 headtube using special headsets with external lower cup (NUkeproof Warhead, FSA Orbit ITA -A, ITA-B, Cane Creek XX44)Headtube length:120mm / 4.7”BB: threaded 73mm with ISCG-05 mountsBiggest chainring: up to ~38tHub: MTB spacing 135x10Disc brake mount: IS (International Standard)Max rotor size: up to 185mmFont derailleurs: top pull, dia. 34.9 / High clamp only.Seatpost: 30.9mmSeatclamp: 34.9Stealth cable route in seat tube for dropper post Online Price £349.99