In the first installment of GRAVELBIKE’s absoluteBLACK (aB) review, I covered aB’s 28T oval MTB chainring. Since then, the company began shipping their new oval CX chainrings. Available in conventional and direct-mount versions, absoluteBLACK’s CX rings feature the company’s Patent Pending narrow-wide tooth design. Because the conventional 5-bolt CX ring isn’t compatible with SRAM cranksets that have a hidden 5th bolt, I opted to test the direct-mount version. Over the past few weeks, I’ve logged 300-350 miles with the company’s 40T oval CX chainring on my Salsa Vaya gravel/commuter rig.
Despite a recent resurgence in popularity, oval chainrings are not new technology. Dating as far back as 1890, non-round chainrings have made numerous appearances in the marketplace, with the most in/famous being Shimano’s Biopace. More recently, oval rings enjoyed a boost in popularity when professional road racers Chris Froome and Sir Bradley Wiggins used non-round rings in their quests for Tour de France victories. And now, oval chainrings such as those offered by absoluteBLACK are seeing more use among off-road riders.
It’s no secret that bicycle light technology has improved by leaps and bounds. The current crop of lights have more power, run longer, and cost less than last year’s offerings. Whether you’re a hardcore commuter or avid recreational rider, there’s bound to be a light that fits your budget and requirements.
Lights generally fall into one of two categories–see by, and be seen lights. The former are brighter, and enable the rider ride safely in areas without ambient light sources (e.g streetlights). The latter, on the other hand, are mostly used for improving cyclists’ visibility in low-light conditions (think urban riding).
Manufacturers specify light output in lumens. Generally, the more lumens, the brighter the light. For my testing, I separated the lights by output. Those lights with a rating of less than 100 lumens were considered be seen lights, while lights rated over 100 lumens were classified as see by lights. This installment covers the lights with 100+ lumens, and Part-II will feature lights with outputs of less than 100 lumens.
|Bontrager Ion 700 RT||700||142||$139.99|
|CatEye Volt 800||800||152||$130.00|
|CatEye Volt 1200||1200||235||$220.00|
|Knog Blinder Arc 640||640||150||$119.95|
|Knog Blinder Road 250||250||75||$79.95|
|Planet Bike Blaze 650 XLR||650||128||$94.99|