Mongoose Impasse 27.5in 2025

2025 Mountain
Estimate price | 619$

Bike details

Overview

Key information split into simple groups.

Bike summary

  • Frame Aluminum
  • Travel Front 100mm
  • Suspension Hardtail
  • Drivetrain 1 × 7
  • Brakes JAK Mechanical Disc

Parts list

Components

Main components, grouped by system.

Bike components

Frame

Frame

Aluminum, internal cable routing, replaceable hanger, tapered headtube

Suspension Fork

Element, 100 mm travel

Drivetrain

Rear Derailleur

Pro Rush

Shift Levers

Pro Rush, 7-speed

Crank

Aluminum, 30T

Bottom Bracket

Semi-cartridge, square taper, 68 mm

Chain

KMC Z7

Pedals

Mongoose, nylon

Wheels

Front Hub

Steel, 32H, 6-bolt

Rear Hub

Steel, 32H, 6-bolt

Rims

Aluminum, double wall, 32H

Spokes

14G, steel, black

Tires

27.5 in x 2.6 in, wire bead

Brakes

Brakes

JAK 7, mechanical disc, aluminum, 160 mm rotor

Cockpit

Stem

Aluminum, threadless, 40 mm, 7? rise, 31.8 mm clamp

Handlebar

Mongoose, steel, 720 mm width, 15 mm rise, 31.8 mm clamp

Grips

Mongoose, Kraton

Headset

Threadless, ZS44 / ZS56 w/reducer, loose ball bearing

Seat

Saddle

Mongoose MTB, steel rails

Seatpost

Aluminum, 350 mm, 27.2 mm

Fit data

Geometry

Numbers for sizing and ride feel.

Size27.5" wheel
Stack Reach Ratio
1.281 mm
Bottom Bracket Height
320 mm
Front Center
747 mm
Rake
51 mm
Trail
104 mm
Stack
608.4 mm
Reach
475.1 mm
Top Tube Length
610 mm
Seat Tube Angle
75 °
Seat Tube Length
430 mm
Head Tube Angle
68 °
Head Tube Length
110 mm
Chainstay Length
450 mm
Wheelbase
1195 mm
Bottom Bracket Drop
35 mm
Standover Height
718 mm
Wheels27"