Velopedia Bicycle Archive
2021 Norco Aurum HSP C1
Original specifications: 27.5"; 29" wheels · geometry for 6 published sizes.
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At a glance
- Model year
- 2021
- Category
- Mountain
- Sizes
- XS/S, S/M, M/L, L/XL
- Geometry
- 6 manufacturer sizes
- In this record
- 20 specifications · archived image · geometry
- Archive ID
- 900000112
Original build27.5"; 29"
Frameset
| Frame Construction | High Single Pivot DH Frame 29 M/L, L/XL, 27.5 XS/S, S/M, M/L, L/XL |
|---|---|
| Fork | RockShox Boxxer Ultimate, Charger 2, RC2 WC |
| Rear Shock | RockShox Super Deluxe Ultimate DH RC, Coil Spring, 400lb/in (XS/S) , 450lb/in (S/M), 500lb/in (M/L), 550lb/in (L/XL) |
Drivetrain
| Shifters | SRAM X01 DH. 7 speed |
|---|---|
| Rear Derailleur | SRAM XO1 DH, medium cage |
| Crankset | SRAM X01 DH DUB, 165mm, X Sync 34T |
| Bottom Bracket | SRAM PressFit DUB |
| Cassette | SRAM XO1 DH, 10-24T |
| Chain | SRAM PC 1110 |
Brakes
| Brakes | (F) SRAM Code RSC, Hydraulic, 200mm / (R) SRAM Code RSC, Hydraulic, 200mm |
|---|
Cockpit & Contact Points
| Headset | Cane Creek 40 Series, sealed bearing |
|---|---|
| Handlebar | Deity Race Point, 810mm, 38mm rise (M/L, L/XL), 35mm bore |
| Stem | Deity Intake Direct Mount |
| Saddle | Deity Side Track I Beam DH |
| Seatpost | SDG I beam, 350mm |
Wheels & Tires
| Hubs | (F) DT Swiss 20x110mm / (R) DT Swiss 12x142mm Boost 27.5, 12x148mm Boost 29 |
|---|---|
| Rims | 29 - DT Swiss FR 1950 wheelset, 27.5 - DT Swiss FR560, 30 mm inner, DT 240 Hubs, DT Competition spokes |
| Front Tire | Maxxis Assegai 2.5" 3C/MaxxGrip/DH/TR |
| Rear Tire | Maxxis Assegai 2.5" 3C/MaxxGrip/DH/TR |
| Wheel Size | 27.5"; 29" |
Geometry
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
All geometry measurements6 sizes · 17 measurements
| Measurement | XS/S · 27.5" | S/M · 27.5" | M/L · 27.5" | L/XL · 27.5" | M/L · 29" | L/XL · 29" |
|---|---|---|---|---|---|---|
| Seat tube | 400 mm | 415 mm | 430 mm | 445 mm | 431 mm | 446 mm |
| Effective top tube | 571 mm | 603 mm | 635 mm | 667 mm | 637 mm | 666 mm |
| Head tube | 100 mm | 107.5 mm | 115 mm | 122.5 mm | 100 mm | 100 mm |
| Head-tube angle | 62.5° | 62.5° | 62.5° | 62.5° | 62.5° | 62.5° |
| Seat-tube angle | 74.4° | 73.5° | 72.7° | 71.8° | 72.3° | 71.6° |
| Chainstay / rear center | 400 mm | 410 mm | 420 mm | 430 mm | 420 mm | 430 mm |
| Wheelbase | 1169 mm | 1203 mm | 1237 mm | 1270 mm | 1235 mm | 1265 mm |
| Bottom-bracket drop | -5 mm | -5 mm | -5 mm | -5 mm | -24 mm | -24 mm |
| Bottom-bracket height | 350 mm | 250 mm | 350 mm | 350 mm | 353 mm | 353 mm |
| Reach | 405 mm | 425 mm | 445 mm | 465 mm | 441 mm | 461 mm |
| Stack | 592 mm | 599 mm | 606 mm | 612 mm | 617 mm | 617 mm |
| Standover height | 631 mm | 632 mm | 635 mm | 638 mm | 652 mm | 652 mm |
| Fork offset / rake | 52 mm | 52 mm | 52 mm | 52 mm | 58 mm | 58 mm |
| Trail | 126 mm | 126 mm | 126 mm | 126 mm | 126 mm | 125 mm |
| Crank length | 165 mm | 165 mm | 165 mm | 165 mm | 165 mm | 165 mm |
| Stem length | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm |
| Wheel size | 27.5" | 27.5" | 27.5" | 27.5" | 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

SRAM X01 DH XG-795 7 Speed Cassette One Color, 10-24
10-24
More parts (2)
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: 2021 Norco Aurum HSP C1 · Mountain · Published sizes: XS/S, S/M, M/L, L/XL
Frame and fork
Inspect the frame and fork →Archived: Frame: High Single Pivot DH Frame 29 M/L, L/XL, 27.5 XS/S, S/M, M/L, L/XL · Fork: RockShox Boxxer Ultimate, Charger 2, RC2 WC
Suspension
Evaluate the suspension →Archived: Fork: RockShox Boxxer Ultimate, Charger 2, RC2 WC · Rear shock: RockShox Super Deluxe Ultimate DH RC, Coil Spring, 400lb/in (XS/S) , 450lb/in (S/M), 500lb/in (M/L), 550lb/in (L/XL)
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM X01 DH. 7 speed · Rear derailleur: SRAM XO1 DH, medium cage · Crankset: SRAM X01 DH DUB, 165mm, X Sync 34T · Bottom bracket: SRAM PressFit DUB · Cassette: SRAM XO1 DH, 10-24T · Chain: SRAM PC 1110
Brakes
Inspect the brakes →Archived: Brakes: (F) SRAM Code RSC, Hydraulic, 200mm / (R) SRAM Code RSC, Hydraulic, 200mm
Wheels and tires
Check wheels and tires →Archived: Wheel size: 27.5"; 29" · Rims: 29 - DT Swiss FR 1950 wheelset, 27.5 - DT Swiss FR560, 30 mm inner, DT 240 Hubs, DT Competition spokes · Hubs: (F) DT Swiss 20x110mm / (R) DT Swiss 12x142mm Boost 27.5, 12x148mm Boost 29 · Front tire: Maxxis Assegai 2.5" 3C/MaxxGrip/DH/TR · Rear tire: Maxxis Assegai 2.5" 3C/MaxxGrip/DH/TR
Controls and contact points
Archived: Headset: Cane Creek 40 Series, sealed bearing · Handlebar: Deity Race Point, 810mm, 38mm rise (M/L, L/XL), 35mm bore · Stem: Deity Intake Direct Mount · Seatpost: SDG I beam, 350mm · Saddle: Deity Side Track I Beam DH
Before and during the test ride
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.
