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POWERFUL BRAKES Tektro MD-M300 Ariesa rear disc brake |
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TOUGH AND LIGHT ALLOY FRAME "Pro Dirt" geometry. |
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NS BIKES COMPONENTS NS Bikes and Octane One aftermarket components in unique finishes. |
Though the Zircus’s new and tough lightweight frame isn’t dirt-bike approved, the geometry seen on the higher-end NS Decade dirt bikes. Its tapered headtube means you can upgrade forks in the future if you want to, though you’ll love Suntour’s reliable XCM 100m fork. The new microdrive drivetrain with small 26t chainring is a superb update for entry-level riders, while the rear hub wisely retains the super-strong 10t driver that’s used on the more expensive Metropolis 3 and Movement 3 models. It’s lighter, more durable and more stylish than ever before. Mechanical disc brakes offer reliability and ease of maintenance. This really is a wonderful bike for the city, off-road and in pumptracks.
MAIN FEATURES
Tough and light alloy frame
Suntour 100mm fork
Samox crankset
Perfect for playing in the city, off-road and on pumptracks. Our fun machines are built with the same DNA as our dirt and mountain bikes and come in multi-functional, budget friendly packages that riders of all levels will love. The Zircus is the perfect tool for mastering pumptrack skills, learning bunnyhops, manuals, 180’s and other fun stuff you can do just about anywhere. It’s important to keep in mind that all those skills are the ABC of riding mountain bikes, and you will also need them on your your 6000€ carbon full suspension bike!
Frame NS Bikes 6061-T6 custom formed and butted tubes
Sizes ONE SIZE
Forks Suntour XCM, 100mm travel, 9mm axle, 1&1/8” steerer tube
Headset GW integrated tapered IS42/IS52, sealed bearings
Stem NS Drop 31.8, 50mm, angle +10°
Handlebar NS 31.8, 740mm, 30mm rise
Grips NS Hold Fast Unlocked
Seatpost Octane One fat seat-post combo
Saddle Octane One fat seat-post combo
Front brake Alhonga v-brake
Rear brake Tektro MD-M300 Aries 160mm
Levers Tektro
Rims Jalco DBX 26”, NS Fundamental 26”, 32h
Spokes Spokes w/14mm nipples
Front hub NS 100x9mm bolt-on
Rear hub NS 135x10mm single speed, 10T driver
Tires front / rear Kenda Small Block 8 26x2.1
Crankset Samox 170mm 26t
Bottom bracket FSA, square taper
Pedals NS Nylon
Chain PYC-510H, 1spd
Weight (kg) 12.3
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 – 1 1/8” 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
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POWERFUL BRAKES Tektro MD-M300 Ariesa rear disc brake |
![]() |
TOUGH AND LIGHT ALLOY FRAME "Pro Dirt" geometry. |
![]() |
NS BIKES COMPONENTS NS Bikes and Octane One aftermarket components in unique finishes. |
Zircus | ||
Wheel | size | 26" |
Fork | travel | 100 |
Reach | mm | 403 |
in | 15,9 | |
FC | mm | 648 |
in | 25,5 | |
Standover | mm | 743 |
in | 29,3 | |
Stack | mm | 560 |
in | 22,0 | |
Effective TT | mm | 589 |
in | 23,2 | |
Actual TT | mm | 564 |
in | 22,2 | |
Seat tube | mm | 328 |
in | 19,9 | |
Chain stays | mm | 381 |
in | 15,0 | |
BB rise | mm | -15 |
in | -0,6 | |
Headtube | angle | 70,0 |
ST angle | effective | 70,0 |
Wheelbase | mm | 1048 |
in | 40,5 |