Velopedia Bicycle Archive
2025 Norco Sight A2 160 MX
Original specifications: 29"/27.5"; 29" wheels · 17.8 kg (39.2 lbs) published weight · geometry for 10 published sizes.
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At a glance
- Model year
- 2025
- Category
- Mountain
- Original MSRP
- $6,149.00
- Sizes
- 1, 2, 3, 4, 5
- Colors
- Blue Point
- Weight
- 17.8 kg (39.2 lbs)
- Geometry
- 10 manufacturer sizes
- In this record
- 21 specifications · 7 archived images · original MSRP · geometry
- Archive ID
- 900001351
Original buildAluminum · 29"/27.5"; 29"
Frameset
| Frame Construction | Aluminum Frame, 160mm Travel, UDH, Eagle Transmission Compatible, Ride Aligned™ |
|---|---|
| Frame Material | Aluminum |
| Fork | Rockshox Zeb Select+ Charger 3.1, 170mm travel, 44mm offset, Fender Included |
| Rear Shock | Rockshox Vivid Coil Select+, 205x65mm TR , Sprindex Spring |
Drivetrain
| Shifters | Shimano Deore SL-M6100, 12sp |
|---|---|
| Rear Derailleur | Shimano Deore RD-M6100, 12sp |
| Crankset | Shimano Deore FC-MT6120-1, 32T, CL55, 165mm (S1,S2) -170mm (S3,S4,S5) |
| Bottom Bracket | Shimano Sealed Bearing, BSA 73mm |
| Cassette | Shimano Deore CS-M6100-12, 12 Speed, 10-51T |
| Chain | Shimano Deore CN-M6100, 12sp |
Brakes
| Brakes | (F) TRP Trail Evo, 4 Piston, Resin Pads / (R) TRP Trail Evo, 4 Piston, Resin Pads; Rotors: (F) TRP TR203, 203mm, 2.3mm Thickness, 6-bolt / (R) TRP TR200, 200mm, 2.3mm Thickness, 6-bolt; Levers: TRP Trail Evo, 4 Piston |
|---|
Cockpit & Contact Points
| Headset | FSA No. 57 ZS, Sealed Bearing, Tapered 1-1/8" - 1.5", ( ZS44/28.6 | ZS56/40 ) |
|---|---|
| Handlebar | OneUp Aluminum bar , 800mm , 35mm rise |
| Stem | OneUp 42mm Length , 35mm Clamp |
| Saddle | WTB Volt 250 |
| Seatpost | TranzX YS105, 34.9mm, 150 (S1) -170mm (S2) -200mm (S3,S4) -230mm (S5) |
Wheels & Tires
| Hubs | (F) Shimano HB-M7110-B,15x110mm,32H, 6-bolt / (R) Shimano FH-M7110 SLX, 12x148mm Boost, Micro Spline, 32H, 6-bolt |
|---|---|
| Rims | Stan's Flow S2, 32H, F- 29", R-27,5", 30mm ID |
| Front Tire | Maxxis Assegai, 3C MaxxGrip EXO+, 29x2.5", Folding |
| Rear Tire | Maxxis Minion DHR II, 3C Maxx Terra DD, 27.5.5x2.4", Folding |
| Wheel Size | 29"/27.5"; 29" |
Geometry
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements10 sizes · 17 measurements
| Measurement | 1 · 29"/27.5" | 2 · 29"/27.5" | 3 · 29"/27.5" | 4 · 29"/27.5" | 5 · 29"/27.5" | 1 · 29" | 2 · 29" | 3 · 29" | 4 · 29" | 5 · 29" |
|---|---|---|---|---|---|---|---|---|---|---|
| Seat tube | 350 mm | 370 mm | 385 mm | 430 mm | 445 mm | 350 mm | 370 mm | 385 mm | 430 mm | 445 mm |
| Effective top tube | 567 mm | 591 mm | 615 mm | 639 mm | 663 mm | 567 mm | 591 mm | 615 mm | 639 mm | 663 mm |
| Head tube | 105 mm | 115 mm | 125 mm | 135 mm | 145 mm | 105 mm | 115 mm | 125 mm | 135 mm | 145 mm |
| Head-tube angle | 63.5° | 63.5° | 63.5° | 63.5° | 63.5° | 63.5° | 63.5° | 63.5° | 63.5° | 63.5° |
| Seat-tube angle | 76.25° | 76.5° | 77° | 77.25° | 77.5° | 76.25° | 76.5° | 77° | 77.25° | 77.5° |
| Chainstay / rear center | 420 mm | 424 mm | 428 mm | 432 mm | 436 mm | 426 mm | 430 mm | 434 mm | 438 mm | 442 mm |
| Wheelbase | 1187 mm | 1220 mm | 1253 mm | 1287 mm | 1320 mm | 1192 mm | 1225 mm | 1259 mm | 1292 mm | 1326 mm |
| Bottom-bracket drop | 20.5/0 | 20.5/0 | 20.5/0 | 20.5/0 | 20.5/0 | 20.5/20.5 | 20.5/20.5 | 20.5/20.5 | 20.5/20.5 | 20.5/20.5 |
| Bottom-bracket height | 353 mm | 353 mm | 353 mm | 353 mm | 353 mm | 353 mm | 353 mm | 353 mm | 353 mm | 353 mm |
| Reach | 416 mm | 441 mm | 466 mm | 491 mm | 516 mm | 416 mm | 441 mm | 466 mm | 491 mm | 516 mm |
| Stack | 622 mm | 631 mm | 640 mm | 650 mm | 659 mm | 622 mm | 631 mm | 640 mm | 650 mm | 659 mm |
| Standover height | 671 mm | 685 mm | 694 mm | 715 mm | 725 mm | 671 mm | 685 mm | 694 mm | 715 mm | 725 mm |
| Fork offset / rake | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Trail | 140 mm | 140 mm | 140 mm | 140 mm | 140 mm | 140 mm | 140 mm | 140 mm | 140 mm | 140 mm |
| Crank length | 170 mm | 170 mm | 170 mm | 170 mm | 170 mm | 170 mm | 170 mm | 170 mm | 170 mm | 170 mm |
| Stem length | 40 mm | 40 mm | 40 mm | 40 mm | 40 mm | 40 mm | 40 mm | 40 mm | 40 mm | 40 mm |
| Wheel size | 29"/27.5" | 29"/27.5" | 29"/27.5" | 29"/27.5" | 29"/27.5" | 29" | 29" | 29" | 29" | 29" |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts

Shimano Deore CN-M6100 Chain Silver, 12 Speed, 126 Links
12 Speed, 126 Links

Maxxis Assegai Wide Trail 3C/TR 29in Tire Double Down/3C/MaxxGrip, 29x2.5
29x2.5
Replacement option · verify fit
More parts (6)

Shimano Deore 12 SL-M6100 Shifter Clamp Band, 12 Speed
12 Speed
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2025 Norco Sight A2 160 MX · Mountain · Published sizes: 1, 2, 3, 4, 5
Frame and fork
Inspect the frame and fork →Archived: Frame: Aluminum Frame, 160mm Travel, UDH, Eagle Transmission Compatible, Ride Aligned™ · Fork: Rockshox Zeb Select+ Charger 3.1, 170mm travel, 44mm offset, Fender Included
Suspension
Evaluate the suspension →Archived: Fork: Rockshox Zeb Select+ Charger 3.1, 170mm travel, 44mm offset, Fender Included · Rear shock: Rockshox Vivid Coil Select+, 205x65mm TR , Sprindex Spring
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Deore SL-M6100, 12sp · Rear derailleur: Shimano Deore RD-M6100, 12sp · Crankset: Shimano Deore FC-MT6120-1, 32T, CL55, 165mm (S1,S2) -170mm (S3,S4,S5) · Bottom bracket: Shimano Sealed Bearing, BSA 73mm · Cassette: Shimano Deore CS-M6100-12, 12 Speed, 10-51T · Chain: Shimano Deore CN-M6100, 12sp
Brakes
Inspect the brakes →Archived: Brakes: (F) TRP Trail Evo, 4 Piston, Resin Pads / (R) TRP Trail Evo, 4 Piston, Resin Pads; Rotors: (F) TRP TR203, 203mm, 2.3mm Thickness, 6-bolt / (R) TRP TR200, 200mm, 2.3mm Thickness, 6-bolt; Levers: TRP Trail Evo, 4 Piston
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29"/27.5"; 29" · Rims: Stan's Flow S2, 32H, F- 29", R-27,5", 30mm ID · Hubs: (F) Shimano HB-M7110-B,15x110mm,32H, 6-bolt / (R) Shimano FH-M7110 SLX, 12x148mm Boost, Micro Spline, 32H, 6-bolt · Front tire: Maxxis Assegai, 3C MaxxGrip EXO+, 29x2.5", Folding · Rear tire: Maxxis Minion DHR II, 3C Maxx Terra DD, 27.5.5x2.4", Folding
Controls and contact points
Archived: Headset: FSA No. 57 ZS, Sealed Bearing, Tapered 1-1/8" - 1.5", ( ZS44/28.6 | ZS56/40 ) · Handlebar: OneUp Aluminum bar , 800mm , 35mm rise · Stem: OneUp 42mm Length , 35mm Clamp · Seatpost: TranzX YS105, 34.9mm, 150 (S1) -170mm (S2) -200mm (S3,S4) -230mm (S5) · Saddle: WTB Volt 250
Before and during the test ride
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Gallery7 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.


