Cannondale F-Si Carbon 4 Mountain Bike 2021 - Hardtail MTB
Light, but it's no lightweight.
A pure XC race mountain bike. Loaded with performance features that ensure victory, all while weighing next to nothing.
Key Features:
- Speed Release
A faster, better thru-axle. The slotted dropout design lets the axle stay in the hub for quicker, easier wheel changes. Compatible with standard 148x12 thru-axle hubs. It’s a better way thru.
- Traction Without Compromise
Proprietary Ai offset drivetrain delivers super short chainstays for climb-winning traction and agile handling, without sacrificing mud/tire clearance or limiting you to single ring set-ups.
- Agility Meets Stability
Confidently stable on hectic descents, yet quick and nimble everywhere else - OutFront Steering Geometry gives you the best of both worlds.
- BallisTec Hi-MOD Carbon
Cannondale's premium high-strength, high-stiffness carbon construction. An advanced blend of intermediate, high, and ultra-high modulus fibers yields a frame that’s extremely light, durable, and lively.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | BallisTec Carbon, SAVE, PF30-83, tapered head tube, Speed Release 12mm thru axle, Ai Offset |
| Fork | Lefty Ocho, 100mm, Chamber Damper with remote lockout, OppO Spring System, tapered steerer, 55mm offset |
| Headset | Integrated, 1-1/8 to 1.5"", sealed angular contact bearings (Integrated steer stop size small and extra small only) |
| Stem | Cannondale 3, 6061 Alloy, 31.8, 7° |
| Bars | Cannondale 2 Flat, butted 2014 Alloy, 31.8mm, 3° rise, 8° sweep, 760mm |
| Front Brake | Shimano MT500 hydraulic disc, 160mm RT54 rotors |
| Rear Brake | Shimano MT500 hydraulic disc, 160mm RT54 rotors |
| Brake Lever | Shimano MT500 hydraulic disc |
| Rear Mech | SRAM NX Eagle |
| Shifters | SRAM NX Eagle, 12-speed |
| Speed | 12 |
| Rims | WTB STX i23 TCS, 32h, tubeless ready |
| Front Hub | Lefty 60 |
| Rear Hub | Shimano MT400 12x148mm thru-axle |
| Spokes | DT Swiss Competition |
| Front Tyre | Schwalbe Racing Ray Performance, 29 x 2.25"", Addix Compound, tubeless ready |
| Rear Tyre | Schwalbe Racing Ralph Performance, 29 x 2.25"", Addix Compound, tubeless ready |
| Seat Post | Cannondale C3, 6061 Alloy, 27.2 x 350mm (S), 400mm (M-XL) |
| Saddle | Fabric Scoop Shallow Sport, steel rails |
| Chainset | SRAM X1-1000 Eagle DUB, 34T, Ai offset |
| Bottom Bracket | SRAM DUB PF30 MTB83 |
| Chain | SRAM SX Eagle, 12-speed |
| Cassette | SRAM SX Eagle, 11-50, 12-speed |
Cannondale F-Si 2021 Size Chart
|
Size |
Height (cm) |
Height (Feet) |
|
S |
157 – 167 |
5’ 2” – 5’ 6” |
|
M |
167 – 175 |
5’ 6” – 5’ 9” |
|
L |
172 – 185 |
5’ 8” – 6’ 1” |
|
XL |
185 – 195 |
6’ 1” – 6’ 5” |
What size frame do I need if I am between sizes? - read here
Cannondale F-Si 2021 Geometry
|
Size |
S |
M |
L |
XL |
|
Seat Tube Length (cm) |
38 |
43 |
48 |
53 |
|
Top Tube Horizontal (cm) |
58.3 |
50.6 |
62.9 |
65.3 |
|
Head Tube Angle |
69° |
69° |
69° |
69° |
|
Seat Tube Angle |
73.1° |
73.1° |
73.1° |
73.1° |
|
Standover (cm) |
75.5 |
79.3 |
82.8 |
86.3 |
|
Head Tube Length (cm) |
9.0 |
10.1 |
11.3 |
12.6 |
|
Wheelbase (cm) |
108.6 |
111.0 |
113.4 |
115.9 |
|
Front Centre (cm) |
66.7 |
69.1 |
71.4 |
73.9 |
|
Chainstay Length (cm) |
42.7 |
42.7 |
42.7 |
42.7 |
|
Bottom Bracket Drop (cm) |
6.2 |
6.2 |
6.2 |
6.2 |
|
Bottom Bracket Height (cm) |
30.8 |
30.8 |
30.8 |
30.8 |
|
Fork Rake (cm) |
5.5 |
5.5 |
5.5 |
5.5 |
|
Trail (cm) |
8.2 |
8.2 |
8.2 |
8.2 |
|
Stack (cm) |
60.2 |
61.2 |
62.3 |
63.5 |
|
Reach (cm) |
40 |
42 |
44 |
46 |
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