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. We 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 120 – 160 mm forks and 650B or 26” wheels.
Surge Evo compatible with a 30.9 seat post which means you can fit your favourite dropper post easily.
NEW FOR 2017: improoved internal routing with rubber grommets.
Material: custom butted 4130 cromoly
Recommended fork travel: 120-160mm
Head tube: integrated tapered IS42/IS52, head tube length: 120mm / 4.7”
Fits forks: fits forks with standard 1-1/8” or tapered 1.5 1-1/8” steerer tubes
BB: threaded 73mm with ISCG-05 mounts
Biggest chainring: up to ~36t
MTB hub spacing: 135x10
Disc brake: disc brake mount IS (International Standard), max rotor size: up to 185mm
Max tyre size: 26”x2.6” or 27.5”x2.4”
Front derailleurs: top pull, dia. 34.9. High clamp only.
Seat post: 30.9 / seat clamp: 34.9
Cable routing: stealth cable route with rubber grommets in seat tube for dropper post
Weight: ~2.73kg (M size)
| Surge Evo | M | L | |
| Wheel | size | 26"/27,5" | |
| Based on | fork travel | 160,0 | 160,0 |
| Reach | mm | 387,0 | 409,0 |
| in | 15,2 | 16,1 | |
| FC | mm | 691,0 | 713,0 |
| in | 27,2 | 28,1 | |
| Standover | mm | 790,0 | 808,0 |
| in | 31,1 | 31,8 | |
| Stack | mm | 613,0 | 613,0 |
| in | 24,1 | 24,1 | |
| Effective TT | mm | 585,0 | 606,0 |
| in | 23,0 | 23,9 | |
| Actual TT | mm | 572,0 | 584,0 |
| in | 22,5 | 23,0 | |
| Seat tube | mm | 393,0 | 432,0 |
| in | 15,5 | 17,0 | |
| Chain stays | mm | 411,0 | 411,0 |
| in | 16,2 | 16,2 | |
| BB rise | mm | -13,5 | -13,5 |
| in | -0,5 | -0,5 | |
| Headtube | angle | 65,5 | 65,5 |
| ST angle | effective | 72,0 | 72,0 |
| Wheelbase | mm | 1103,0 | 1124,0 |
| in | 43,4 | 44,3 |
