Rear tire: 700C×40.
Velopedia Bicycle Archive
2025 Giant FastRoad AR 2
Original specifications: 9.83kg (21lb 11oz) - Size (M) published weight · geometry for 5 published sizes.
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At a glance
Archive #900001858- Model year
- 2025
- Category
- Road
- Original MSRP
- $1,150.00
- Sizes
- XS, S, M, M/L, L, XL
- Colors
- Glacier Silver
- Weight
- 9.83kg (21lb 11oz) - Size (M)
- Geometry
- 5 manufacturer sizes
- In this record
- 21 specifications · archived image · original MSRP · geometry
Original buildAluminum
Frameset
| Frame Construction | ALUXX-grade aluminum, 12x142mm thru-axle, disc |
|---|---|
| Frame Material | Aluminum |
| Fork | Advanced-grade composite, composite OverDrive steerer, 12x100mm thru-axle, disc |
| Fork Material | Carbon Fiber |
Drivetrain
| Shifters | Shimano CUES U4000, 9-speed |
|---|---|
| Rear Derailleur | Shimano CUES |
| Crankset | FSA Omega AGX+, 42t XS:170mm, S:170mm, M:170mm, M/L:172.5mm, L:172.5mm, XL: 175mm |
| Bottom Bracket | threaded |
| Cassette | Shimano CS-LG3009, 11x41 |
| Chain | Shimano CN-LG500 |
| Pedals | platform pedal |
Brakes
| Brakes | Tektro HD-R280, Giant MPH rotors [F]160mm, [R]160mm |
|---|
Cockpit & Contact Points
| Handlebar | Giant Sport Flat, 31.8 XS:64cm, S:64cm, M:68cm, M/L: 68cm, L:68cm, XL:68cm |
|---|---|
| Stem | Giant Sports XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm |
| Saddle | Giant ErgoContact |
| Seatpost | Giant D-Fuse, alloy, 350mm |
Wheels & Tires
| Hubs | Giant alloy, 12mm thru-axle |
|---|---|
| Rims | Giant S-X2 Disc wheelset |
| Spokes | Sapim |
| Front Tire | Maxxis Re-Fuse, tubeless, 700x40c |
| Rear Tire | Maxxis Re-Fuse, tubeless, 700x40c |
No specifications match. Try a component name or clear your search.
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 17 measurements
| Measurement | S | M | ML | L | XL |
|---|---|---|---|---|---|
| Seat tube | 455 mm | 475 mm | 495 mm | 525 mm | 555 mm |
| Top tube | 560 mm | 575 mm | 590 mm | 610 mm | 630 mm |
| Head tube | 130 mm | 155 mm | 175 mm | 200 mm | 225 mm |
| Head-tube angle | 70.5° | 71° | 71° | 71.5° | 71.5° |
| Seat-tube angle | 73.5° | 73.5° | 73° | 73° | 73° |
| Chainstay / rear center | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1047 mm | 1058 mm | 1069 mm | 1084 mm | 1105 mm |
| Bottom-bracket drop | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm |
| Reach | 396 mm | 404 mm | 407 mm | 419 mm | 432 mm |
| Stack | 552 mm | 578 mm | 597 mm | 623 mm | 646 mm |
| Standover height | 736 mm | 756 mm | 773 mm | 800 mm | 826 mm |
| Fork offset / rake | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm |
| Trail | 73.7 mm | 70.4 mm | 70.4 mm | 67.1 mm | 67.1 mm |
| Crank length | 170 mm | 170 mm | 172.5 mm | 172.5 mm | 172.5 mm |
| Stem length | 80 mm | 90 mm | 90 mm | 100 mm | 110 mm |
| Handlebar width | 640 mm | 680 mm | 680 mm | 680 mm | 680 mm |
| Wheel size | 700C | 700C | 700C | 700C | 700C |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
tubeless, 700x40c

Maxxis Re-Fuse TR Tire Black, MaxxShield, 700x40
700x40c
Model match
Other replacement options (2)

Maxxis Re-Fuse TR Tire Black/Dark Tan, 700x40
700x40c
Model match

Challenge Getaway Race Vulcanized Tubeless Tire Black, 700x40
700x40c
Replacement option
More parts (3)Fewer parts
Giant MPH rotors [F]160mm, [R]160mm
9-speed
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Service essentialsQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- Maxxis Re-Fuse, tubeless, 700x40cCheck: Verify the fitted tire’s size marking and rim type.
- Rear tire
- Maxxis Re-Fuse, tubeless, 700x40cCheck: Verify the rear size; it may differ from the front.
- Drivetrain
- 9-speedCheck: Match the installed drivetrain family, not just its speed count.
- Bottom bracket / shell
- threadedCheck: Verify shell type and width, crank interface, and spindle length or spacers.
Not confirmed in this record: Seatpost diameter. Check the fitted parts for these details.
Bike-specific inspection checklist 20 checks based on 5 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 Giant FastRoad AR 2 · Road · Published sizes: XS, S, M, M/L, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: ALUXX-grade aluminum, 12x142mm thru-axle, disc · Fork: Advanced-grade composite, composite OverDrive steerer, 12x100mm thru-axle, disc · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano CUES U4000, 9-speed · Rear derailleur: Shimano CUES · Crankset: FSA Omega AGX+, 42t XS:170mm, S:170mm, M:170mm, M/L:172.5mm, L:172.5mm, XL: 175mm · Bottom bracket: threaded · Cassette: Shimano CS-LG3009, 11x41 · Chain: Shimano CN-LG500
Brakes
Inspect the brakes →Archived: Brakes: Tektro HD-R280, Giant MPH rotors [F]160mm, [R]160mm
Wheels and tires
Check wheels and tires →Archived: Rims: Giant S-X2 Disc wheelset · Hubs: Giant alloy, 12mm thru-axle · Front tire: Maxxis Re-Fuse, tubeless, 700x40c · Rear tire: Maxxis Re-Fuse, tubeless, 700x40c
Controls and contact points
Archived: Handlebar: Giant Sport Flat, 31.8 XS:64cm, S:64cm, M:68cm, M/L: 68cm, L:68cm, XL:68cm · Stem: Giant Sports XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm · Seatpost: Giant D-Fuse, alloy, 350mm · Saddle: Giant ErgoContact · Pedals: platform pedal
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.

