Rear tire: 26×2.25.
Velopedia Bicycle Archive
2021 Giant STP 26
Original specifications: geometry for 2 published sizes.
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At a glance
- Model year
- 2021
- Category
- Mountain
- Original MSRP
- $1,200.00
- Sizes
- Reg, Lrg
- Colors
- Metallic Black
- Geometry
- 2 manufacturer sizes
- In this record
- 20 specifications · 2 archived images · original MSRP · geometry
- Archive ID
- 900003329
Model history 4 other years
Original buildAluminum
Frameset
| Frame Construction | ALUXX-Grade Aluminum, horizontal dropouts, integrated chain tensioner |
|---|---|
| Frame Material | Aluminum |
| Fork | RockShox Recon Silver RL, 15x110mm120mm, with remote lockout |
Drivetrain
| Shifters | Shimano |
|---|---|
| Rear Derailleur | Shimano Deore |
| Crankset | alloy forged, 30t |
| Bottom Bracket | threaded |
| Cassette | Shimano CSM-4100, 11x46 |
| Chain | KMC X10 |
| Pedals | platform |
Brakes
| Brakes | Tektro HD-M275, hydraulic disc |
|---|
Cockpit & Contact Points
| Handlebar | Giant Sport, alloy, 31.8 |
|---|---|
| Stem | forged alloy, 0-degree |
| Saddle | Giant Sport |
| Seatpost | alloy, two-bolt, 30.9x350 |
Wheels & Tires
| Hubs | Giant Disc, 28h, QR, alloy, disc |
|---|---|
| Rims | Giant 26", alloy, 28mm inner width |
| Spokes | stainless, 14g |
| Front Tire | Maxxis Ardent, 26x2.25 |
| Rear Tire | Maxxis Ardent, 26x2.25 |
Geometry
Frame measurements by size.
Reference drawing
Select an available measurement to locate it on the frame.
All geometry measurements2 sizes · 10 measurements
| Measurement | Regular | Large |
|---|---|---|
| Top tube | 545 mm | 575 mm |
| Head tube | 100 mm | 110 mm |
| Head-tube angle | 67° | 67° |
| Seat-tube angle | 73.5° | 73.5° |
| Chainstay / rear center | 435 mm | 435 mm |
| Wheelbase | 1086 mm | 1117 mm |
| Reach | 374 mm | 401 mm |
| Stack | 579 mm | 588 mm |
| Standover height | 679.5 mm | 717.6 mm |
| Crank length | 155 mm | 155 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
How it works
Ratio = chainring teeth ÷ rear sprocket teeth. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Bike-specific inspection checklist 20 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 Giant STP 26 · Mountain · Published sizes: Reg, Lrg
Frame and fork
Inspect the frame and fork →Archived: Frame: ALUXX-Grade Aluminum, horizontal dropouts, integrated chain tensioner · Fork: RockShox Recon Silver RL, 15x110mm120mm, with remote lockout
Suspension
Evaluate the suspension →Archived: Fork: RockShox Recon Silver RL, 15x110mm120mm, with remote lockout
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano · Rear derailleur: Shimano Deore · Crankset: alloy forged, 30t · Bottom bracket: threaded · Cassette: Shimano CSM-4100, 11x46 · Chain: KMC X10
Brakes
Inspect the brakes →Archived: Brakes: Tektro HD-M275, hydraulic disc
Wheels and tires
Check wheels and tires →Archived: Rims: Giant 26", alloy, 28mm inner width · Hubs: Giant Disc, 28h, QR, alloy, disc · Front tire: Maxxis Ardent, 26x2.25 · Rear tire: Maxxis Ardent, 26x2.25
Controls and contact points
Archived: Handlebar: Giant Sport, alloy, 31.8 · Stem: forged alloy, 0-degree · Seatpost: alloy, two-bolt, 30.9x350 · Saddle: Giant Sport · Pedals: platform
Before and during the test ride
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Gallery2 images
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





