Estimate uses the published front tire 26×2.1 as a proxy, corroborated by the wheel size. Rear tire size is not published or verified. Approximate circumference; actual rollout varies with tire and pressure. Theoretical, not a maximum achievable speed.
Velopedia Bicycle Archive
2007 Giant Boulder Semi-Slick
Original specifications: Shimano Altus · 7-speed · mechanical rear derailleur · 26" wheels.
Selling this bike? Create a shareable bike record
At a glance
- Model year
- 2007
- Category
- Mountain
- Original MSRP
- $240.00
- Sizes
- 12.5", 14", 16", 18", 20", 22"
- Colors
- Black/Anthracite
- In this record
- 24 specifications · archived image · original MSRP
- Archive ID
- 96403
Original buildChromoly seat tube · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Chromoly seat tube |
| Fork | Spinner Grind 1, 80mm travel |
| Fork Material | Steel, single crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano EF-50 |
| Front Derailleur | Shimano C-102 |
| Rear Derailleur | Shimano Altus |
| Crankset | SR Suntour XCC-T208, 28/38/48 teeth |
| Bottom Bracket | Cartridge |
| Rear Cogs | 7-speed, 14 - 34 teeth |
| Chain | KMC Z51 |
| Pedals | Nylon platform |
Brakes
| Brakes | Alloy Direct Pull brakes, Shimano EF-50 levers |
|---|
Cockpit & Contact Points
| Handlebar | Steel 50mm rise |
|---|---|
| Handlebar Extensions | Not included |
| Stem | Alloy |
| Saddle | Giant Dirt Jump |
| Seatpost | Alloy |
Wheels & Tires
| Hubs | Alloy |
|---|---|
| Rims | Alloy w/ Brushed Sidewalls |
| Spokes | Stainless steel |
| Front Tire | 26 x 2.10" Kenda K-Rad |
| Wheel Size | 26" wheels |
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
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.
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: 2007 Giant Boulder Semi-Slick · Mountain bike, front suspension · Published sizes: 12.5", 14", 16", 18", 20", 22"
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Spinner Grind 1, 80mm travel · Steel, single crown
Suspension
Evaluate the suspension →Archived: Fork: Spinner Grind 1, 80mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano EF-50 · Front derailleur: Shimano C-102 · Rear derailleur: Shimano Altus · Crankset: SR Suntour XCC-T208, 28/38/48 teeth · Bottom bracket: Cartridge · Rear cogs: 7-speed, 14 - 34 teeth · Chain: KMC Z51
Brakes
Inspect the brakes →Archived: Brakes: Alloy Direct Pull brakes, Shimano EF-50 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Alloy w/ Brushed Sidewalls · Hubs: Alloy · Front tire: 26 x 2.10" Kenda K-Rad
Controls and contact points
Archived: Handlebar: Steel 50mm rise · Stem: Alloy · Seatpost: Alloy · Saddle: Giant Dirt Jump · Pedals: Nylon platform
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.
This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held up over time. Velopedia reviews every contribution before publication.
Already contributed? Send me a fresh private edit link
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Checking current listings…
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.
