# K2 F.I.T. 84 Boa vs Flying Eagle F5S+ Eclipse: specs and price compared

A sourced, side-by-side comparison of the K2 F.I.T. 84 Boa (K2) and Flying Eagle F5S+ Eclipse (Flying Eagle) among inline skates. Flying Eagle F5S+ Eclipse is the cheaper of the two at $179.95.

## Side by side

| Spec | K2 F.I.T. 84 Boa | Flying Eagle F5S+ Eclipse |
| --- | --- | --- |
| US price | $219.95 | $179.95 |
| Brand | K2 | Flying Eagle |
| Released | 2026 | — |
| Wheel diameter (mm) | 84 | 80 |
| Wheels per frame | 4 | 4 |
| Bearing rating | TwinCam ILQ7 | ABEC 7 |
| Frame material | aluminum (stamped) | aluminum (CNC machined) |
| Closure system | Boa speed lacing + cuff buckle + 45-degree velcro power strap | plastic cuff buckle + 45-degree micro-adjustable ratchet buckle + standard lacing |
| Wheel durometer (A) | 80 | 85 |
| Boot type | soft | hardshell (Eclipse molded plastic, removable liner) |
| Brake included | Yes | No |

## Key differences

- Wheel diameter (mm): K2 F.I.T. 84 Boa 84 vs Flying Eagle F5S+ Eclipse 80
- Bearing rating: K2 F.I.T. 84 Boa TwinCam ILQ7 vs Flying Eagle F5S+ Eclipse ABEC 7
- Frame material: K2 F.I.T. 84 Boa aluminum (stamped) vs Flying Eagle F5S+ Eclipse aluminum (CNC machined)
- Closure system: K2 F.I.T. 84 Boa Boa speed lacing + cuff buckle + 45-degree velcro power strap vs Flying Eagle F5S+ Eclipse plastic cuff buckle + 45-degree micro-adjustable ratchet buckle + standard lacing
- Wheel durometer (A): K2 F.I.T. 84 Boa 80 vs Flying Eagle F5S+ Eclipse 85
- Boot type: K2 F.I.T. 84 Boa soft vs Flying Eagle F5S+ Eclipse hardshell (Eclipse molded plastic, removable liner)
- Brake included: K2 F.I.T. 84 Boa Yes vs Flying Eagle F5S+ Eclipse No

## Sources

- K2 F.I.T. 84 Boa: https://www.inlinewarehouse.com/K2_FIT_84_BOA/descpage-I222019.html (inlinewarehouse.com, verified 2026-08-11)
- Flying Eagle F5S+ Eclipse: https://www.inlinewarehouse.com/Flying_Eagle_F5S_Eclipse/descpage-F5SPB.html (inlinewarehouse.com, verified 2026-08-11)

Canonical: https://frontdeskreview.com/gear/inline-skates/k2-fit-84-boa-vs-flying-eagle-f5s-eclipse/
Cite: Per The Front Desk Review, K2 F.I.T. 84 Boa ($219.95) vs Flying Eagle F5S+ Eclipse ($179.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/inline-skates/k2-fit-84-boa-vs-flying-eagle-f5s-eclipse/
License: CC BY 4.0.