Kellys Marc 90

2025 YouthMountain youth Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €519 Last known price
Fork travel: 50 mm
Wheels: 24″
Drivetrain: 3 × 8 22–42t / 12–32t
Gear range: 509%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

315 mm

The manufacturer did not publish rider heights for these sizes.

Components

18 of 23 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

KELLYS Alutec RRC MTB 24 - Race Ready Concept Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

7 parts

Bottom bracket

cartridge (118 mm) Not identified
Cassette
- Shimano CS-HG200-8 8 speeds 12–32t
CS-HG200
Chain
- KMC
Crankset
- SR Suntour
Front derailleur
- Shimano Tourney FD-TY710
FD-TY710
Rear derailleur
- Shimano Altus RD-M310
RD-M310
Shifters
- Shimano Altus SL-M310
SL-M310

Brakes

3 parts

Brake levers
- Tektro
Brakes
- Tektro
Disc rotors

160 mm front / 160 mm rear Not identified

Wheels and tires

5 parts

Front hub
- KLS
Rear hub
- KLS
Rims
- KLS
Spokes

steel black Not identified
Tires
- Mitas

Cockpit and contact points

6 parts

Grips
- KLS
Handlebar
- KLS
Pedals

plastic Not identified
Saddle
- KLS
Seatpost
- Kalloy
Stem
- ProMax

Sizes and geometry

1 size

Rider-height ranges are not published for these sizes.

Size

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 50 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 22
Largest chainring: 42
Rear sprockets: 8
Smallest sprocket: 12
Largest sprocket: 32
Lowest gear: 16.5 in
Highest gear: 84.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 1.95″
Wheel material: Aluminum
Wheel size: 24″

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

16.5 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2025
Sample: 257 bicycles with this information
Coverage: 70.0% of the class

Highest gear

84.0 gear inches

This value is above the central range for this class.

Cohort: Youth / Mountain youth Model year: 2025
Sample: 257 bicycles with this information
Coverage: 70.0% of the class

Shifting

Mechanical

10 of 367 bicycles with this information use electronic shifting.

Cohort: Youth / Mountain youth Model year: 2025
Sample: 367 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.3 km/h
Highest gear: 32.2 km/h

Total gear range 509%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 16.5–84.0 gear inches
Class reference (p10–p90): 14.0–80.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2025
Lowest gear: 257 bicycles with this information, 70.0% of the class
Highest gear: 257 bicycles with this information, 70.0% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2025 builds
Specification	This bicycle Kellys Marc 90	Kellys Marc 50	Kellys Marc 50, 24"	Kellys Marc 70	Kellys Marc 70, 24"	Kellys Marc 90, 24"
Frame
Bicycle weight	Not informed	Not informed	11.96 kg	Not informed	11.14 kg	11.86 kg
Fork material	Not informed	Not informed	Not informed	Aluminum	Aluminum	Not informed
Suspension
Suspension configuration	Hardtail	Hardtail	Hardtail	Rigid	Rigid	Hardtail
Front travel	50 mm	50 mm	50 mm	Not informed	Not informed	50 mm
Drivetrain
Front chainrings	3	1	1	1	1	1
Smallest chainring	22	36	36	36	36	32
Largest chainring	42	36	36	36	36	32
Rear sprockets	8	7	7	7	7	9
Smallest sprocket	12	12	12	12	12	11
Largest sprocket	32	32	32	32	32	34
Lowest gear	16.5 in	27.0 in	27.0 in	27.0 in	27.0 in	22.6 in
Highest gear	84.0 in	72.0 in	72.0 in	72.0 in	72.0 in	69.8 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Other specifications
Fork spring	Coil	Coil	Coil	Not informed	Not informed	Coil
Suspension	Hardtail	Hardtail	Hardtail	Rigid	Rigid	Hardtail
Tire width	1.95″	1.95″	1.95″	2.35″	2.35″	1.95″