Superior Racer XC 27 DB

2021 YouthMountain youth Manufacturer page

Fork travel: 100 mm
Wheels: 27.5″
Drivetrain: 1 × 8 32t / 11–34t
Gear range: 309%
Weight: 12.7 kg 28.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

13 of 20 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

Alu 6061 T6 Double Butted, Advanced Junior Geometry,1xOptimized, BB BSA, SR dropout Not identified

Suspension

1 part

Fork
- SR Suntour XCT30

Drivetrain

6 parts

Bottom bracket
- Thun
Cassette
- Shimano CS-HG31-8 8 speeds 11–34t
CS-HG31
Chain
- KMC Z8.3 8 speeds
Crankset

Wheel Top SXB4BL-WM, 32T Not identified
Rear derailleur
- Shimano RD-M360-L
RD-M360
Shifters
- Shimano Altus SL-M315-8R 8 speeds
SL-M315-8R

Brakes

1 part

Brakes
- Shimano BR-MT200
BR-MT200BL-MT200

Wheels and tires

5 parts

Front hub
- Shimano HB-TX505
HB-TX505
Rear hub
- Shimano FH-TX505-8 11 speeds
FH-TX505
Rims

Stars J20S, 32H Not identified
Spokes
- Sapim
Tires
- Schwalbe Smart Sam

Cockpit and contact points

6 parts

Grips

ONE1 VLG-1661D2N, Lock-On Not identified

VLG-1661D2N
Handlebar

ONE1 Alloy, MTB AL-718BT, 34mm rise, 600mm, 25.4mm Not identified

AL-718BT
Pedals
- Marwi
SP-610
Saddle
- Selle Royal
Seatpost

ONE1 Sport Alloy, SP C208, 27.2mm Not identified
Stem

ONE1 MAS-MD60368 Alloy, 25.4mm, 15° Not identified

MAS-MD60368

Sizes and geometry

2 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size XS

Table

Reach 382mm

Stack 566mm

Wheelbase 1064mm

Head angle 69.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	382	423
Stackmm	566	566
Top tube lengthmm	547	586
Seat tube lengthmm	343	393
Head tube lengthmm	90	90
Head tube angle	69°	69°
Seat tube angle	74°	74°
Chainstay lengthmm	435	435
Wheelbasemm	1064	1103
Front centermm	632	671
Bottom bracket dropmm	40	40
Fork rakemm	44	42
Stack/reach ratio	1.48	1.34
Suspension and parts
Crank lengthmm	160	160
Handlebar widthmm	600	600
Stem lengthmm	35	35
Seatpost lengthmm	350	350

Not published by the manufacturer: Bottom bracket height, Standover height, Trail, Front travel, Rear travel, Stem angle and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 12.7 kg

28.0 lb

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 25.9 in
Highest gear: 80.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Coil
Tire width: 2.1″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

2 measures

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

Lowest gear

25.9 gear inches

This value is above the central range for this class.

Cohort: Youth / Mountain youth Model year: 2021
Sample: 230 bicycles with this information
Coverage: 72.3% of the class

Highest gear

80.0 gear inches

This value is above the central range for this class.

Cohort: Youth / Mountain youth Model year: 2021
Sample: 230 bicycles with this information
Coverage: 72.3% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.9 km/h
Highest gear: 30.6 km/h

Total gear range 309%

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: 25.9–80.0 gear inches
Class reference (p10–p90): 15.6–80.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2021
Lowest gear: 230 bicycles with this information, 72.3% of the class
Highest gear: 230 bicycles with this information, 72.3% 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 2021 builds

Differences across 2021 builds
Specification	This bicycle Superior Racer XC 27 DB	Superior Racer XC 20	Superior Racer XC 24
Frame
Bicycle weight	12.7 kg	9.1 kg	11.5 kg
Fork material	Not informed	Steel	Not informed
Suspension
Suspension configuration	Hardtail	Rigid	Hardtail
Front travel	100 mm	Not informed	50 mm
Drivetrain
Smallest chainring	32	28	28
Largest chainring	32	28	28
Rear sprockets	8	7	8
Smallest sprocket	11	14	11
Largest sprocket	34	28	34
Lowest gear	25.9 in	20.0 in	19.8 in
Highest gear	80.0 in	40.0 in	61.1 in
Brakes
Brake type	Hydraulic disc	Rim brake	Rim brake
Other specifications
Fork spring	Coil	Not informed	Coil
Suspension	Hardtail	Rigid	Hardtail
Tire width	2.1″	1.9″	2″
Wheel size	27.5″	20″	24″