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Topo Athletic

MTN Racer 4

TrailRelease date 2025-07JP

MTN Racer 4 is a high-cushion neutral trail shoe built for technical races and daily training. It retains the proven platform and Vibram Megagrip traction of its predecessor while adding an FKT insole for faster drainage and rebound, a tuned upper, and an improved gaiter attachment. ZipFoam protection, a roomy toe box, and a secure midfoot and heel support natural movement and confident footing on wet, rocky terrain.

Intended uses:
Trail, Race

Specs

Weight
295g
Of 948 known values: 668 lower, 23 equal, 257 higher. The marker uses the midpoint of equal values.
heavierUpper 29.5%, including ties / average +27g
Drop
5mm
Of 961 known values: 162 lower, 110 equal, 689 higher. The marker uses the midpoint of equal values.
lowerLower 28.3%, including ties / average -1.8mm
Stack (heel/forefoot)
33 / 28mm
Of 788 known values: 289 lower, 40 equal, 459 higher. The marker uses the midpoint of equal values.
Standard39.2th percentile (tie midpoint) / average -1.3mm
Carbon plate
No
83% of 866 known models have no carbon plates
Midsole
ZipFoam
Outsole
Vibram Megagrip
Reference price
$155
US price
Weight measurement and plate details
Weight note
295 g for men's M9 from the exact Topo Athletic Japan product page; the US official page independently lists 10.4 oz for men's M9.
Plate note
Complete exact JP and US pages describe the midsole, FKT insole, Vibram Megagrip, upper and core specifications without identifying carbon. The US specifications explicitly state Rock Plate: No. The complete construction supports the existing non-carbon classification; that narrow rock-plate statement is not expanded into absence of every plate structure.

Prices and release dates by market

2 markets are registered. Values are shown as published for each market: no currency conversion and no guessed days or months. Reference prices are not current shop prices.

Reference prices and release dates by market
MarketReference priceRelease
United StatesUS
$155Shown aboveBefore tax
Not registered
JapanJP
¥24,750Tax incl.
2025-07-16Planned release
2025-07Shown aboveGeneral releaseday not confirmed

Changes from the previous model

A comparison with the registered values for Topo Athletic MTN Racer 3.

In the registered data, weight is 9g heavier at 295g.

These are differences between registered values, not a controlled comparison at the same size and measurement conditions. See the notes below the specs for weight conditions.

Compare within the database

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

Comparison: All data (1,044 shoes)

Position map

This shoeregistered average

Weight x stack height

registered average: 266g / 34.4mm (768 shoes)

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

Spec distributions

This shoeregistered average

Weight

This shoe 295gregistered average 268g (948 shoes)

96g383g

Drop

This shoe 5mmregistered average 6.8mm (961 shoes)

0mm12mm

Stack height

This shoe 33mmregistered average 34.3mm (788 shoes)

6mm58mm

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

Related video

Official video from Topo Athletic.