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BH RS1 3.5 vs BH SL1 3.5

BH RS1 3.5, side view

BH

RS1 3.5

BH SL1 3.5, side view

BH

SL1 3.5

Mid-rangeAeroCarbon700c2026
Mid-rangeCarbon700c2026

Close on the specs and the list price: here are their 5 differences, line by line.

BH RS1 3.5, side viewBHBH RS1 3.5
BH SL1 3.5, side viewBHBH SL1 3.5

At a glance

Key specs2 differences
Model yearSame for all 2026 2026
FrameSame for all Carbon
As printed

Additionally, we use Performance Carbon Layup, which maximizes the bike's lightness-to-stiffness ratio.

 Carbon
As printed

Toray T400 Carbon with HCIM (Hollow Core Internal Molding)

Wheelset 700c · Shimano RS180 700c · Shimano RS171
As printed

Wheelset: Shimano RS171

DrivetrainSame for all 2×12 2×12
GroupsetSame for all Shimano 105
As printed

Shimano 105 12sp

 Shimano 105
As printed

Shimano 105 shift levers

Brake modelSame for all Shimano 105 hydraulic Shimano 105 hydraulic
As printed

Front/rear brake: Shimano 105 hydraulic

Seatpost RS1 Aero BH Lite 27,2
List price–Not given £2,272

Prices

Each model's retailers, delivered to your country, and their prices over time.

BH RS1 3.5

BH RS1 3.5

BH SL1 3.5

BH SL1 3.5

Affiliate links: no extra cost for you ♥

Character

The bike at a glance: the ground it is made for, how it handles, its gears and its equipment, beside the other bikes of its kind.

  • RS1 3.5 · aero road bike, carbon frame, 700c wheels, 2×12 drivetrain, mid-range equipment
  • SL1 3.5 · Road bike made for very smooth ground, neutral handling, average equipment.
Terrain
BH SL1 3.5 19%3 bikes9 bikes6 bikes14 bikes · BH SL1 3.511 bikes4 bikes1 bike5 bikes17 bikes15 bikes4 bikes3 bikes9 bikes3 bikes2 bikes4 bikes3 bikes4 bikes4 bikes6 bikes3 bikes
EasyDemanding
Handling
BH SL1 3.5 45%3 bikes5 bikes4 bikes3 bikes6 bikes2 bikes4 bikes3 bikes7 bikes5 bikes4 bikes10 bikes2 bikes6 bikes2 bikes5 bikes · BH SL1 3.57 bikes5 bikes2 bikes2 bikes7 bikes5 bikes7 bikes2 bikes3 bikes6 bikes4 bikes3 bikes3 bikes5 bikes4 bikes4 bikes3 bikes7 bikes1 bike4 bikes
NimbleStable

Equipment level

0255075100£4,000£6,000£8,000£10,000List priceEquipment score
  • BH SL1 4.5
  • BH Ultralight Evo Ii 6.0
  • BH Ultralight Evo Ii 7.0
  • Merida Reacto 10k
  • Merida Reacto Force AXS
  • Merida Reacto
  • Merida Scultura 10k
  • BH SL1 3.5
  • RS1 3.5Equipment level 53/100 · Mid-range
  • SL1 3.5Equipment level 53/100 · Mid-range
BH RS1 3.5BH SL1 3.5other road bikes

Components and specs

Every spec line by line; the higher range of a component is marked. The technical groups are folded.

Ride type
Ride type Aero
As printed

The Kamm Tail shapes in the tube sections make the RS1 a 100% aerodynamically efficient bike.

–Not given
Frame and fork
ForkSame for all Carbon
As printed

RS1 Disc Full Integrated Tapeder, Full Carbon 1.5

 Carbon
As printed

SL1 Disc Full Integrated Tapeder, Full Carbon 1.5´

Max tyre clearance–Not given 32 mm
Axles–Not given Thru-axles
As printed

12 mm Thru Axle, hidden and tool-free

Bottom bracket–Not given BB386EVO
As printed

BB386EVO system

Seatpost diameter–Not given 27.2 mm
Drivetrain1 difference
Groupset brandSame for all Shimano
As printed

Shimano 105 12sp

 Shimano
As printed

Shimano 105 shift levers

ShiftingSame for all Mechanical °Value not published by the brand
As printed

Shimano 105 12sp Shimano 105

 Mechanical
As printed

Shimano 105 shift levers

ChainringsSame for all 2 °Value not published by the brand 2 °Value not published by the brand
Gears at the backSame for all 12 12
Chainring teeth Shimano 105 52/36 FSA Gossamer 50/34
As printed

Crank set: FSA Gossamer 50/34

CassetteSame for all Shimano 105 11/34 Shimano 105 11/34
As printed

Cassette: Shimano 105 11/34

Rear derailleurSame for all Shimano 105 12sp °Value not published by the brand Shimano 105 12sp °Value not published by the brand
ShiftersSame for all Shimano 105 °Value not published by the brand Shimano 105 °Value not published by the brand
Brakes
BrakesSame for all Hydraulic disc
As printed

Shimano 105 hydraulic

 Hydraulic disc
As printed

Shimano 105 hydraulic (SL1 Disc frame)

Wheels and tyres1 difference
Wheel sizeSame for all 700c / 29"
As printed

Hutchinson Nitro 700x 28

 700c / 29"
As printed

Chaoyang Shark 700x 28

RimsSame for all Aluminium °Value not published by the brand Aluminium °Value not published by the brand
Tyres Hutchinson Nitro 700x 28 Chaoyang Shark 700x 28
As printed

Tyres: Chaoyang Shark 700x 28

Tyre width fittedSame for all 28 mm 28 mm
Cockpit and seatpost2 differences
Handlebar FSA Gossamer Compact °Value not published by the brand BH Lite Compact °Value not published by the brand
Stem–Not given BH SL °Value not published by the brand
Seatpost model RS1 Aero °Value not published by the brand BH Lite 27,2 °Value not published by the brand

° Value not published by the brand

Geometry

A size per bike (the nearest to the first one's at first), the differences measured from the reference bike.

SL1 3.5 · M
  • SL1 3.5 · M

Stack and reach

510520530540550560570580350360370380390400410420↖ UprightAggressive ↘Reach (mm)Stack (mm)SL1 3.5 · M — Reach (mm) 384 · Stack (mm) 549
  • SL1 3.5 · M SL1 3.5 · M — Reach (mm) 384 · Stack (mm) 549
Geometry
Size–Not given M
Reach–Not given 384 mm
Stack–Not given 549 mm
Top tube (effective)–Not given 557 mm
Seat tube–Not given 463 mm
Head tube–Not given 150 mm
Head angle–Not given 73°
Seat angle–Not given 72.5°
Chainstays–Not given 410 mm
Wheelbase–Not given 982 mm
Front centre–Not given 580 mm
BB drop–Not given 65 mm
BB height–Not given 271 mm
Fork offset–Not given 43 mm
Trail–Not given 58 mm

Where to buy them

Compare the whole BH SL1 range

Frequently asked questions

What groupset do BH RS1 3.5 and BH SL1 3.5 come with?

BH RS1 3.5: Shimano 105. BH SL1 3.5: Shimano 105.

Other comparisons

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