BH SL1 4.0

Name: BH SL1 4.0
Brand: BH

2025 RoadRace Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £2,999 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 36–52t / 11–34t
Gear range: 446%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 158–167
SM 165–173
MD 169–180
LG 177–186
XL 183–191
XXL 186–194

Components

14 of 16 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

SL1 Disc ICR Monocoque Not identified

Suspension

1 part

Fork

SL1 Disc Full Integrated Tapeder, Full Carbon 1.5Â´ Not identified

Drivetrain

6 parts

Cassette
- Shimano 105
Chain
- Shimano 105
Crankset
- Shimano 105 52/36t
Front derailleur
- Shimano 105 FD-R7150 2 speeds
FD-R7150
Rear derailleur
- Shimano 105 RD-R7150 12 speeds
RD-R7150
Shifters
- Shimano 105 ST-R7170
ST-R7170

Brakes

1 part

Brakes
- Shimano 105

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Handlebar
- BH
Headset
- FSA
Saddle
- San Marco
Seatpost
- BH
Stem
- BH

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 384mm

Stack 549mm

Wheelbase 982mm

Head angle 73.0°

Seat angle 72.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	382	383	384	386	396	403
Stackmm	517	523	549	583	594	605
Top tube lengthmm	510	544	557	570	586	600
Seat tube lengthmm	398	433	463	493	504	520
Head tube lengthmm	108	120	150	185	196	205
Head tube angle	71.8°	72°	73°	73°	73°	73.2°
Seat tube angle	74.8°	72.5°	72.5°	72.5°	72°	71.8°
Chainstay lengthmm	410	410	410	410	410	410
Wheelbasemm	963.3	978.4	981.6	994.3	1005.1	1006.9
Front centermm	565	577	580	593	603	603
Bottom bracket dropmm	74.5	65	65	65	64.7	64.5
Bottom bracket heightmm	261	271	271	271	271	271
Fork rakemm	31	40	43	43	41	34
Trailmm	78	67	58	58	60	66
Stack/reach ratio	1.35	1.37	1.43	1.51	1.50	1.50

Not published by the manufacturer: Standover height, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 36
Largest chainring: 52
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 30.7 in
Highest gear: 137.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Tire width: 28c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

30.7 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2025
Sample: 762 bicycles with this information
Coverage: 78.1% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2025
Sample: 762 bicycles with this information
Coverage: 78.1% of the class

Shifting

Electronic

643 of 969 bicycles with this information use electronic shifting.

Cohort: Road / Race Model year: 2025
Sample: 969 bicycles with this information
Coverage: 99.3% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 52.5 km/h

Total gear range 446%

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: 30.7–137.1 gear inches
Class reference (p10–p90): 28.2–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Race Model year: 2025
Lowest gear: 762 bicycles with this information, 78.1% of the class
Highest gear: 762 bicycles with this information, 78.1% 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 BH SL1 4.0	BH SL1 3.0	BH SL1 3.5	BH SL1 4.5
Drivetrain
Smallest chainring	36	34	34	36
Largest chainring	52	50	50	52
Rear sprockets	12	10	12	12
Smallest sprocket	11	12	11	11
Largest sprocket	34	28	34	34
Lowest gear	30.7 in	35.2 in	29.0 in	30.7 in
Highest gear	137.1 in	120.8 in	131.8 in	137.1 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Hydraulic disc	Hydraulic disc
Cockpit
Shifting	Electronic	Mechanical	Mechanical	Electronic