The new BH SL1 enters the road range of the Spanish brand with the aim of bridging the gap between pure endurance bikes and competition bikes. It is a proposal that combines lightness, comfort and performance in a frame that inherits many technical solutions from the top of the range BH models.
thoughtful for those who love to travel long distances without giving up speed, The SL1 positions itself as an accessible yet high-end model, with advanced carbon construction and a highly integrated aesthetic. Yes, its category is endurance, but it's truly so much more. And let's see why...






Frame and geometry and materials
The BH SL1 frame is made of carbon Toray T400 Performance Carbon Layup, the same material used on some of the brand's higher-end models, but with a layering designed to ensure a perfect balance between lightness, rigidity and resistance over time. Hollow Core Internal Molding (HCIM) technology, developed internally by BH, it allows for a more compact and imperfection-free carbon, thanks to a high-pressure internal hollowing process that optimizes the thickness only where necessary.
The result is a responsive yet comfortable frame, with a low weight (1.050 grams for the M size frame) and high steering precision. Compact Stay rear triangle, designed in one piece, contributes to better power transmission, while lateral stiffness is increased by the use of the bottom bracket BB386EVO and from the diagonal tube with a larger cross-section.
Despite its endurance vocation, The SL1 inherits the racing DNA typical of BH: The power delivery and pedaling efficiency are closely reminiscent of racing models. The Endurance geometry, however, softens the angles and offers a more relaxed position, ideal for long days in the saddle, without sacrificing handling and responsiveness when changing pace.


A functional aesthetic
The new fork Endurance full carbon represents one of the distinctive elements of the BH SL1. Made entirely of carbon fiber, it is designed to improve both aerodynamics and the ability to absorb vibrations from the ground. Thanks to a generous space between the seat stays, it allows for the installation of tires up to 32 millimeters, and even 35 Millimeters on some models, increasing the versatility of the bike on dirt roads or rougher stretches.
The fork design integrates perfectly with the rest of the frame, following the clean and modern line that BH has introduced in its most recent models. Added to this is careful work on aesthetic and functional integration: the fully internal cable routing keeps the frame clean and aerodynamic, while the integrated seatpost clamp offers a refined look and secure fit.
Another important technical detail is the system 12mm Thru Axle Quick Lever: The thru-axles are hidden and require no tools to mount or remove the wheel, making maintenance quicker and tidier. Additionally, the SL1 features UDH dropout, a now widespread standard that simplifies compatibility and improves shock resistance.

Vision Team TC30 i23

Vision Team35

ShimanoRS171

Vision Team TC30 i23

Vision Team35

ShimanoRS171
Three installations
The range BH SL1 It's available in three configurations, all based on the same Toray T400 carbon frame, but designed to meet the needs of cyclists of different levels and ambitions. Or simply of budget.
The top model is the SL1 4.5, offered at 3.999,9 euro, equipped with group Shimano Ultegra Di2 12 speed, wheels Vision Team TC30 Disc and tires Hutchinson Nitro 28mm: a configuration that aims for maximum performance, with precise and reliable electronic shifting.
Immediately below it is positioned the SL1 4.0, at 3.299,9 euros With a Shimano 105 Di2 12-speed groupset, Vision Team 35 wheels, and the same 28mm Hutchinson Nitro tires. This version combines modern technology with a more affordable price, ideal for those who want an advanced bike without spending as much as the top-of-the-range model.
Finally, the SL1 3.5, available at 2.499,9 euros It features a Shimano 105 12-speed mechanical derailleur, Shimano RS171 wheels, and 28mm Chaoyang Shark tires. It's the most accessible option, designed for those looking to enter the world of carbon endurance with a high-end frame and solid components.
With the SL1, BH completes its endurance range with a model that combines comfort, elegance and performance, maintaining the racing identity that has always distinguished the Spanish brand.