The Diamant 140 features the same frame as the Mahon and Nhoma. 

We measure the frame size as the distance from the center of the bottom bracket to the top of the seat tube. We recommend that all our customers take a test ride and seek professional advice from our dealers. 

The Diamant 140 weighs 14.7 kg and has a permissible total weight (bike, rider and load) of 136 kg. 

The SR Suntour NCX32 with 75 mm travel is fitted to the Diamant 140. Depending on the terrain, the fork can be locked or unlocked.  

The fork has a preload adjustments, which allows a limited range of adjustment. 

The Diamant 140 is equipped with the latest Shimano GRX 12 speed drivetrain, combining a very wide gear ratio with ease of use and reduced maintenance. 

The Diamant 140 comes with the robust Kovee wheels from Bontrager, high quality DT Swiss spokes and reliable Shimano hubs.  

The Diamant 140 rolls on Nobby Nic tires from Schwalbe with bronze sidewall. An all-rounder that works in every situation, no matter what the weather brings, no matter what the terrain.  

The Diamant 140 is equipped with the Elite Gravel handlebars from Bontrager. 

The racktime VIEWIT is fitted to the Diamant 140. Even if the size looks inconspicuous, the front carrier can carry a load of up to 5 kg. The permissible total weight (bike, rider and load) of 136 kg must not be exceeded. 

The Diamant 140 can be equipped with the Mahon rack, and we recommend the use of rechargeable battery lights. There are no mudguards that we can recommend – any aftermarket solutions will have to be checked for proper function and clearance, please refer to a professional bicycle retailer.  

Collection bikes are limited-edition models that showcase Diamant at its most creative. They serve as a journey through our rich history or as an exploration of contemporary trends. While they are always based on current existing frames, they stand out significantly from regular models. Collection bikes are developed in creative workshops, bringing together product management, design, and marketing. Unlike regular bikes, which prioritize technology and utility, a collection bike is born from a story. 

“Our movement is free time”. That’s our motto this year. And we’re going to the moon. Why, you ask? Because the moon is the perfect symbol of time – and of humanity’s desire to break free from constraints to build a better world.  

The Diamant 140 is our first European collection bike. We celebrate 140 years of time and embark on a new journey into the unknown. This is our moon landing moment, and the Diamant 140 is our lunar vehicle.   

Diamant introduced its first collection bikes in 2010 with the Pacer 125 and the Topas 125. There was no model released in 2011, but since 2012, Diamant has developed a new collection bike every year. 

Each year, our collection bikes explore a unique theme and tell a self-contained story. We intentionally design bikes that stand out – sometimes in a bold or provocative way. To enhance their value as collector’s items, production is limited. If a concept proves successful, it may inspire a new regular model, as was the case with the Diamant Nhoma (collection bike 137, 2022). 

Collection bikes are distinguished by their striking design – whether through bold colors, special paint finishes, or unique graphics. But they are more than just eye-catchers: each model tells a story. For example, we collaborated with a yoga instructor on the Diamant 137, partnered with an outdoor chef for the 138, and co-designed the 139 with one of Germany’s most successful DJs.