Test / Photochromic cycling glasses for mountain bikers: Shimano's Technium L shows two sides in the test. While the photochromic lens impresses with its huge range of applications and fast reaction time, flaws in the build quality and a susceptibility to fogging mar the otherwise strong impression.
Shimano Technium L: Dimensions and build quality
At first glance, the Shimano Technium L makes a good impression. With a width of 132 mm and a lens height of 54 mm, it's one of the more compact models in the test field, but the frameless design ensures virtually unrestricted vision. Weighing in at a featherlight 26 grams, you'll hardly notice it on your nose. A clever detail is the reversible nose pad, which allows for simple yet effective fine-tuning to different nose shapes.
However, the positive impression quickly fades when you pick up the glasses. For a price of around €130, we expected significantly more. The frame creaks at the slightest twist, the temples have noticeable play, and even the lens isn't securely in place. It simply doesn't feel high-quality and doesn't live up to the technical standards Shimano usually delivers. The fact that Shimano also omitted a hard case only reinforces the impression that corners were cut in the wrong places.
Shimano Technium L: Glass
This is where the Technium L truly shines and demonstrates its full potential! Shimano has incorporated a photochromic lens that covers a vast range of 17% to 85% visible light transmission (VLT), corresponding to categories 1 to 3. The 85% VLT in the lightened state is a top value in the test field – making the glasses practically clear and perfectly usable even at dusk or during night rides. At the other end of the spectrum, the 17% tint is dark enough for sunny days. This tint is often combined with Shimano's proprietary Ridescape technology, which optimizes contrast. The hydrophobic coating further contributes to water repellency. Crucially, however, the lens's reaction speed is paramount: the Technium L adapts impressively quickly to changing light conditions.
On the trail: Our test impressions
The mixed impression is confirmed on the trail. The lens's performance is beyond reproach. The rapid transition between light and dark when entering the woods or a clearing works flawlessly and provides a great deal of safety. The low weight and good fit, thanks to the adjustable nose pad, ensure high wearing comfort without slipping.
Unfortunately, the Technium L has a problem with fogged lenses. Despite ventilation openings, it tended to fog up quickly during strenuous climbs in our test – sometimes even while riding. This can, of course, always depend on individual face shape and conditions, but it was noticeable compared to other glasses in the test. The constant creaking with every slight movement or adjustment might not impair the view itself, but it does detract somewhat from the perceived quality and thus the riding enjoyment.
