Define AL 170 2
NS
Enduro
Define AL 170 2 is an alloy enduro mountain bike (2024), by NS, from the Define lineup. It suits a wide range of riders thanks to its fit flexibility, with a balanced riding position, and is aimed at more technical trails and rougher terrain. Its strongest points in the MatchBikes metrics are capable suspension support for rougher terrain, a comfort-leaning ride feel over longer rides, and strong climbing friendliness for sustained uphill riding. Use MatchBikes.com to compare this bike with nearby enduro options.
7.7
Rating

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Score Summary
Performance
7.6
Fit
7.7
Performance
Built for speed and efficiency
Speed
4.8
Very Low
Climbing Efficiency
7.4
Climber
Suspension
9.0
Extreme rough-terrain ready
Fit
Dialed-in Fit & Comfort
Riding Position
5.5
Balanced
Fit Flexibility
7.3
Adjustable
Ride Comfort
8.5
Comfortable
Value
Surface Range
Tech TrailsSpecifications
General
Brand
NS
Model
Define AL 170 2
Year
2024
Category
Mountain
Sub Category
Enduro
Groupset
Deore
Frame
Frame
NS Define AL w/ 170mm travel, AL6061-T6 + AL6066-T6, custom hydroformed tubes, semi internal cable routing
Suspension Fork
RockShox ZEB 180mm travel, 110x15mm Boost, 1.5T, 44mm offset
Rear Shock
X-Fusion Vector R Trunnion 225x70mm, S
Suspension Type
Full
Drivetrain
Shift Levers
Shimano Deore M6100, 12spd
Rear Derailleur
Shimano Deore M6100, 12spd
Cassette
Sunrace CSMZ800, 12spd 11-51T
Crank
Shimano Deore FCMT510-1 170mm 34t
Bottom Bracket
Shimano BSA 73mm
Chain
Shimano, 12 spd
Wheels
Front Hub
NS 15 Boost 110x15mm disc (sealed bearings)
Rear Hub
NS 148x12mm Boost (sealed bearings)
Rims
Octane One Solar 29” front, Octane One Solar 27.5” rear, 32h, tubeless ready
Spokes
Spokes w/14mm nipples
Tires
Schwalbe Big Betty BikePark 29x2.4" / Schwalbe Big Betty BikePark 27.5x2.4"
Brakes
Brake Type
Mechanical Disc
Brake Description
Front: Shimano MT420, 200mm, Rear: Shimano MT420, 200mm
Cockpit
Stem
NS Tone 35, 45mm
Handlebar
NS Bar 35, 800mm, 20mm rise
Grips
NS Hold Fast
Seat
Saddle
Octane OneRocket2, CrMo hollow rails
Seatpost
X-Fusion Manic internal S
Geometry
| Measurement | SM | MD | LG |
|---|---|---|---|
| Stack Reach Ratio | 1.498 mm | 1.4 mm | 1.333 mm |
| Bottom Bracket Height | 349 mm | 349 mm | 349 mm |
| Front Center | 781 mm | 811 mm | 846 mm |
| Rake | 35 mm | 35 mm | 37 mm |
| Trail | 140 mm | 140 mm | 138 mm |
| Stack | 644 mm | 644 mm | 653 mm |
| Reach | 430 mm | 460 mm | 490 mm |
| Top Tube Length | 592 mm | 624 mm | 654 mm |
| Seat Tube Angle | 76 ° | 76 ° | 76 ° |
| Seat Tube Length | 396 mm | 432 mm | 483 mm |
| Head Tube Angle | 64.5 ° | 64.5 ° | 64.5 ° |
| Chainstay Length | 438 mm | 438 mm | 438 mm |
| Wheelbase | 1218 mm | 1248 mm | 1284 mm |
| Bottom Bracket Drop | -7 mm | -7 mm | -7 mm |
| Standover Height | 765 mm | 757 mm | 752 mm |
| Wheels | 29" | 29" | 29" |
| Rider Min Height | 158 cm | 168 cm | 176 cm |
| Rider Max Height | 170 cm | 179 cm | 187 cm |




























































