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Altra

Mont Blanc Carbon

TrailReleased 2024-02-27US

Mont Blanc Carbon is a zero-drop racer for technical trails, ultras, and all-day mountain running. A full-length Carbitex MonoFlex carbon plate adds propulsion and protection. Its hybrid midsole places responsive Altra EGO PRO in the core and durable EGO MAX around the rim. Vibram Megagrip with Litebase grips wet and dry ground, while Standard FootShape fit secures the midfoot and leaves room for toe movement.

Intended uses:
Trail, Race, Long run
3 sources · checked 2026-08-31

Specs

Among 865 listed shoes, this is a heavier / lower-stack Trail

Weight
309g
Of 811 known values: 703 lower, 8 equal, 100 higher. The marker uses the midpoint of equal values.
heavierUpper 13.3%, including ties / average +42g
Drop
0mm
Of 815 known values: 0 lower, 48 equal, 767 higher. The marker uses the midpoint of equal values.
lowerLower 5.9%, including ties / average -6.8mm
Stack height (heel/forefoot)
29 / 29mm
Of 694 known values: 97 lower, 23 equal, 574 higher. The marker uses the midpoint of equal values.
lowerLower 17.3%, including ties / average -5.7mm
Carbon plate
Yes
17% of 786 known models have carbon plates
Midsole
Altra EGO PRO / Altra EGO MAX
Outsole
Vibram Megagrip with Litebase
Reference price
$275
US price
Weight measurement and plate details
Weight note
Altra Japan official men's page lists 309g at US10.5 / 28.5cm.
Plate note
Altra Japan official page states a full-length Carbitex Monoflex carbon plate.

Compare within the database

See where these specs sit in the overall distribution. You can also compare within the same category.

Comparison: All data (865 shoes)

Position map

This shoeregistered average

Weight x stack height

registered average: 265g / 34.7mm (686 shoes)

The scatter plot includes only shoes with both weight and stack height registered.

Spec distributions

This shoeregistered average

Weight

This shoe 309g·registered average 267g (811 shoes)

97g375g

Drop

This shoe 0mm·registered average 6.8mm (815 shoes)

0mm13.8mm

Stack height

This shoe 29mm·registered average 34.7mm (694 shoes)

10.5mm58mm

Items with missing numeric values are excluded. Sample sizes and measurement conditions vary between models; this distribution is not a performance ranking.