fun bike / pumptrack


Suggested retail price:
More info



Bike info


- Tough and light alloy frame
- “Pro dirt” geometry
- Light Suntour XCM 100mm fork
- Tektro Novela rear disc brake
- High end NS Bikes cockpit
- Single speed drivetrain

The Zircus has the same lightweight and strong aluminium frame set that is used in the Movement range and is built using affordable but good quality parts making this bike perfect for playing in the city, off-road or on pumptracks. An optional derailleur hanger is available so you can convert this bike from single speed to gears if needed.

Bike Specs

Frame Specs

Frame: NS Bikes 6061-T6 custom formed and butted tubes


Forks: Suntour XCM, 100 mm travel, 10mm axle

Headset: GW integrated tapered IS42/IS52, sealed bearings

Stem: NS Tone 31.8, 45mm

Handlebar: NS Bar, 760mm 12mm rise

Grips: NS Sam Pilgrim signature, w/o flanges

Seatpost: Octane One fat seat-post combo

Saddle: Octane One fat seat-post combo

Front brake: Alhonga v-brake

Rear brake: Tektro Novela 160 mm

Levers: Tektro

Rims: Jalco DBX 26”, 32h front, NS Fundamental 26”, 32h

Spokes: Spokes w/14mm nipples

Front hub: Joytech 9 mm bolt-on

Rear hub: Joytech Single Speed, w/14t freewheel

Tires front / rear: Kenda Small Block 8 26x2.1

Crankset: Lasco 175mm 32t single ring + rockring

Bottom bracket: FSA, square taper

Pedals: NS Nylon

Chain: PYC-410H, 1spd

Cassette: freewheel 14t

Weight (kg): 12.4

Specifications subject to change without notice. Actual colours and design may vary slightly from the images on the website.

Tubes: A6061-T6 custom formed and butted tubes

Recommended fork travel: 80-140mm

Head tube: integrated tapered IS42/IS52

Head tube length: 115mm

Fits forks: fits forks with standard 11/8” or tapered 1.5 – 11/8” steerer tubes

BB shell: standard threaded 68mm (compatible with MTB cranks and 3pcs BMX cranks with Euro BB)

Biggest chainring: up to ~34t

Rear hub: spacing O.L.D 135x10mm, suggested bolton hubs

Disc brake: IS mount , max rotor size: up to 185mm

Maximum recommended tire size:  26”x2.35”

Seat post/clamp: 30.9mm / 34.9mm, max seat post insertion: 275mm

Rear derailleur: optional bolton hanger included

Weight: ~2.09kg



Wheel size 26"
Fork travel 100
Reach mm 397
in 15,6
FC mm 653
in 25,7
Standover mm 738
in 29,1
Stack mm 574
in 22,6
Effective TT mm 585
in 23,0
Actual TT mm 571
in 22,5
Seat tube mm 335
in 13,0
Chain stays mm 385
in 15,2
BB rise mm -25
in -1,0
Headtube angle 69,0
ST angle effective 72,0
Wheelbase mm 1037
in 40,8