Stiffness per mm.
EI divided by construction thickness. The supplied Maple reference is 14.0; HybridCore is 14.0 × 3.65 = 51.1, in millions of N·mm²/mm.
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RLTH TECHNOLOGIES / CONSTRUCTION FILE 02.6
Ten layers.
Four materials.
A closer look at how a deck bends and twists.
Standard uses V2.6. Apex and Flow use V2. Explore the supplied construction, understand the stiffness comparisons, then choose the shape for your skating.

Illustrative construction study. Material surfaces, spacing and layer thicknesses are schematic.
READ THE NUMBERS CORRECTLY
EI divided by construction thickness. The supplied Maple reference is 14.0; HybridCore is 14.0 × 3.65 = 51.1, in millions of N·mm²/mm.
The separate torsion ratio supplied by RLTH is 13 for HybridCore, against a Maple reference of 1. It is not derived from the bending value.
These values do not establish breaking load, weight-normalized efficiency, measured pop or service life. Individual riding results are not predicted by these comparisons.
The values on this page were supplied by RLTH. The displayed HybridCore EI/mm is normalized from the supplied Maple reference, not recalculated from the older raw EI/thickness table. Full test conditions, sample counts, uncertainty and independent verification are not available here. Do not treat the illustrations as test photographs.
TOP FACE → BOTTOM FACE

The public layup specifies materials and order. Numeric layer thicknesses and fibre directions were not supplied.
STANDARD V2.6 / CONSTRUCTION STUDY

01 / THE CONSTRUCTION
Carbon, maple, bamboo and fiberglass, arranged in ten layers.
02 / THE COMPARISON
3.65×Bending stiffness per millimetre, relative to the supplied Maple reference.
RLTH-supplied EI/mm values in millions of N·mm²/mm: 14.0 × 3.65 = 51.1. These are stiffness-per-thickness values, not breaking strength, weight efficiency or measured pop. The comparison applies to Standard V2.6; no matching V2 measurements are supplied for Apex or Flow. The layer image is illustrative and is not to scale.
Explore the technology and methodology ↗Explore bending and twisting in a schematic construction.
Illustrative deformation. No applied force, angle or measured displacement is implied.
BEHAVIOUR / MATERIAL
A laminated material can resist bending and twisting in different ways. Use the controls to explore the two movements.
Ratios supplied by RLTH. Full test conditions and uncertainty are not published here.
STANDARD V2.6 / MATERIAL COMPARISON
EI/mm relative to standard Maple
Resistance to twisting, relative to Maple
| Deck | EI/mm | Torsion |
|---|---|---|
| Standard V2.6 | 51.1 | 13× |
| Powell Flight | 25.4 | Not supplied |
| Kape Vanguard | 34.3 | Not supplied |
| DBX Basalt | 35.9 | Not supplied |
| Standard 7-ply Maple | 14.0 | 1× |
EI describes bending stiffness. Dividing EI by construction thickness gives the efficiency per millimetre used here. This is a thickness-normalized comparison; it does not measure weight efficiency, breaking strength or pop.
Torsional stiffness describes resistance to twisting. Maple is the reference at 1×. The supplied Standard V2.6 ratio is 13×. Values for the other constructions are not available, so no points are plotted for them.
Each dot is one deck's supplied value. Dots further to the right have a higher value on the selected scale. Decks can be selected independently. The fixed scale stays the same when a deck is hidden, and missing measurements are never treated as zero.
EI/mm is displayed in millions of N·mm²/mm. HybridCore's 51.1 is normalized from the Maple reference 14.0 × 3.65. Test setup, sample counts and measurement uncertainty are not published here.
01 / HYBRIDCORE V2.6
The supplied layup combines carbon, maple, bamboo and fiberglass. Explore each layer in the construction study.
02 / POWELL FLIGHT
Maple, AirLam and fiberglass in the supplied comparison dataset. Toggle both decks to inspect their EI/mm values side by side.

01 / STREET + PARK
A familiar shape for a session that goes everywhere.
CHF 121.95
Choose Standard ↗
02 / TECHNICAL STREET
A pronounced concave for your street-focused setup.
CHF 126.95
Choose Apex ↗
YOUR TERRAIN / YOUR SHAPE
RIDER / SETUP · 7 QUESTIONS
Answer 7 quick questions about your style, terrain, and preferences. Find your starting point: Apex for street performance, Flow for freestyle, or Standard for mixed terrain.
01 — Discipline
02 — Style
03 — Priority
04 — Terrain
05 — Feel
06 — Level
07 — Width
Your Match
Apex — Street performance, with a more pronounced concave.
Flow — Freestyle and technical flat-ground skating, with a mellower shape.
Standard — An adaptable starting point for street, park and mixed terrain.
Your answers indicate a preference, not a measured performance score. Check the selected product's size and shape before choosing.