Nukeproof Cub Scout 20

Nukeproof Cub Scout 20

The Cub-Scout 20” is not just another kids bike: taking inspiration from our award-winning Scout adult hardtail range, the Cub-Scout 20” has been designed from the ground-up as a proper mini-hardtail mountain bike. It has been designed to allow kids to learn the ropes of riding, inspire confidence on the trails and act as the perfect platform for progression. Developed and tested with the help of our own children, we have created a class leading lightweight kids bike range to inspire and nurture budding future World Cup or EWS winners!

The range of Cub-Scout Hardtails are available in 20”, 24” or 26” options; meaning that there should be a bike to suit kids of all sizes from aged 5 and up. Each bike features a lightweight custom butted 6061 Alloy frameset with bang up to date long, low and slack kids specific geometry.

Updated Kids Specific Components:

Proper fit and function of components is essential for kids bikes because adult components are not optimised for smaller people. To ensure that these bikes fit and function perfectly, we took the time to test and develop our own or work with our partners to select the best kids-specific components we could find on the market.

Kids specific parts include:

  • Nukeproof Urchin Saddle, Grips & Handlebars
  • Custom tuned forks for young rippers
  • Specific resized cranks
  • Kids specific brake levers

Features:

  • Kids Hardtail
  • Hydroformed 6061 Triple-Butted Aluminium
  • Small person optimisation- kids specific componentry
  • Sizes Avaliable: 20""

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Nukeproof Cub Scout 20
Nukeproof Cub Scout 20

Full Specs

Sport Race
Frame Nukeproof Cub-Scout 20”, custom butted hydro-formed 6061 Alloy, threaded bottom bracket, 142mm Bolt-thru rear axle spacing Nukeproof Cub-Scout 20”, custom butted hydro-formed 6061 Alloy, threaded bottom bracket, 142mm Bolt-thru rear axle spacing
 Fork Nukeproof Cub-Scout 20”+ Fork, custom butted hydro-formed 6061 Alloy, 1 1/8th Steerer, 40mm Offset, 15x100mm Bolt-thru Axle Manitou Machete JUNIT 20” Expert Air, 80mm Travel, 1.5 Tapered Steerer, 40mm Offset, BOOST 15x110mm Bolt-thru Axle
Shock NA NA
Front Wheel Joytec D041-15 15x100mm hub on WTB STi30 20" TCS Rim Nukeproof Neutron 15x110mm hub on WTB STi30 20" TCS Rim
Rear Wheel Joytec D952TSE-X12 12x142mm hub on WTB STi30 20" TCS Rim Nukeproof Neutron 12x142mm hub on WTB STi30 20" TCS Rim
Tyres Front & Rear: Vee Rubber Crown Gem 20" x 2.6” Skinwall, MPC Compound Front: Vee Rubber Flow Snap 20" x 2.4” Skinwall, Tackee Compound, Rear: Vee Rubber Flow Snap 20" x 2.4” Skinwall, MPC Compound
Crankset Samox TAF38J 2 Piece Crank 127mm, 32T, BCD 104 Samox TAF38J 2 Piece Crank 127mm, 32T, BCD 104
Shifter Shimano M315 8-Speed, w optical display BOX FOUR 8-Speed 
Rear Deraileur Shimano M310 8-Speed BOX FOUR Short Cage 8-Speed with Clutch
Chain KMC Z8.1 EPT 8-Speed BOX FOUR 8-Speed
Cassette  Sunrace CSM55 8-Speed, 11-34T Sunrace CSM680 8-Speed, 11-42T
Brakes Tektro M276 Kids Specific Hydraulic Brakes Tektro M291 Kids Specific Hydraulic Brakes
 Front Rotor Tektro Wave, 160mm Tektro Wave, 160mm
Rear Rotor Tektro Wave, 160mm Tektro Wave, 160mm
Handlebars Nukeproof Urchin 600mm Wide, 15mm Rise, 31.8mm Clamp Nukeproof Urchin 600mm Wide, 15mm Rise, 31.8mm Clamp
Stem 40mm, black Nukeproof Neutron AM, 35mm, black
Saddle Nukeproof Urchin, Black Nukeproof Urchin, Black
Seatpost Nukeproof Urchin, Black, 27.2mm, 300mm Long, 0 Offset Nukeproof Urchin, Black, 27.2mm, 300mm Long, 0 Offset
Headset Nukeproof Warhead, 44-44 IESS Nukeproof Warhead, 44-44 IETS
Grips Nukeproof Urchin Single Clamp lock on, 115mm Long, Soft Compound Nukeproof Urchin Single Clamp lock on, 115mm Long, Soft Compound
Bearings NA NA
Weight:   10.12kgs/22.26lbs  10.8kgs/23.76lbs 

Geometry & Sizing

20" 24" 26"
(A) Reach 311
321 (SAGGED)
333
345.5 (SAGGED)
366
381 (SAGGED)
(B) Stack 467.5
461 (SAGGED)
542
534 (SAGGED)
592
582 (SAGGED)
(C) Effective Top Tube Length 459
456 (SAGGED)
503.5
500 (SAGGED)
550
546 (SAGGED)
(D) Seattube Length 265 320 360
(E) Effective Seattube Angle N/A N/A N/A
(F) Seattube Angle (Actual) 72.5°
73.75° (SAGGED)
72.5°
74° (SAGGED)
72.75°
74.25° (SAGGED)
(G) Saddle Height at Saddle Offset 420 460 510
(H) Saddle Offset at Saddle Height 126.3 150.35 151.24
(I) Headtube Length 100 100 100
(J) Headtube Angle 66.5°
77.75° (SAGGED)
66.5°
77.75° (SAGGED)
66°
77.5° (SAGGED)
(K) Chainstay Length 355 405 420
(L) Front Centre 541 592 661
(M) Wheelbase 894
886 (SAGGED)
993
984 (SAGGED)
1076.5
1065 (SAGGED)
(N) Bottom Bracket Drop -35
-42.25 (SAGGED)
-45
-54.5 (SAGGED)
-47
-58 (SAGGED)
(O) Bottom Bracket Height 240
233 (SAGGED)
280.5
270 (SAGGED)
296.5
285.5 (SAGGED)
(P) Stand Over Height 518.6 616.4 655.5
(Q) Fork Travel 80 100 120
(R) Trail 78.14 74.63 77.43
(S) Fork Offset 38 38 46
(T) Axle to Crown  385
365 (SAGGED)
455
430 (SAGGED)
514
484 (SAGGED)
(U) Maximum Seatpost Insert 200 220 260

*All dimensions in mm unless otherwise stated

Recommended Sizing

Help

  • FAQs
  • Frame Spec
  • Tech Docs
  • Where can I buy Nukeproof Bikes?
  • Nukeproof bikes, components and apparel is sold through an authorised dealer network. Check out our dealer locator for your local local stockist or preferred online store www.nukeproof.com/dealers 
  • Do your bikes come with Warranty?
  • All Cub Scout frames come with a 5 year frame warranty (Please visit www.nukeproof.com/warranty for full info). On top of that we also offer an extended 2-year warranty on all components excluding wear and tear items such as bearings, brake pads, chains & cassettes etc. Our Warranty policy applies to the original owner and processed by our authorised retail partners. To see their warranty process check: www.nukeproof.com/warranty
  • Where can I demo a Nukeproof bike? 
  • We run numerous demo's through the year at major events and with our dealer network. Check out www.nukeproof.com/demo for when we may be near you. If this is unavailable to you, you can always request a demo through your local authorised stockist.  
  • What size bike do I need? 
  • All our products come with a size guide. This is designed as an indication of the size that may suit you. If you are still unsure speak with one of our dealers who will be happy to help you pick the right size and model for you 
  • How does you bike range work? 
  • Our range is named based on specification level. Not every Bike Frame will have each specification level, but in order of price they run: Sport - Race - Comp - Pro - Elite- Factory/ST (Reactor Only) - RS   
Material: Hydroformed 6061 Triple-Butted Aluminium 
Fork Travel: Rigid (Sport) / 80mm (Race)
Axle to Crown: 385mm
Fork Offset: 38mm
Wheels Size: 20"
Max Tyre Size: 2.6"
Sizing: One Size
Headtube: 44mm Semi-Integrated
Headset:

Sport: ZS44-28.6 / ZS44-30 (For 1 1/8" Steerer)

Race: ZS44-28.6 / EX44/40 (For Tapered Steerer fork)

Seatpost: 27.2mm
Seat Clamp: 31.8mm
BB: Threaded 68mm BSA
Rear Hub: 142x12mm
Front Hub:

Sport: 100x15mm (non boost)

Race: 110x15mm (boost)

Rear Axle: M12*1.5 Thread x 168mm (Thread Length 17mm)
Front Axle: Included with fork
Chain Guide: ISCG05
Brake Mount: 160mm Direct Post
Protection: Kevlar Chainstay Protector