The Diamondback Haanjo 4 is one of Diamondbacks newest gravel and adventure bikes. This gravel road bike is designed to be light, efficient, and comfortable for long rides on mixed terrain. The frame features a tapered and relaxed head tube angle, fully butted 6061-T6 aluminum frame, flat mount disc brakes with 142x12mm thru axle dropouts, carbon 12mm thru axle fork with tapered steerer tube and replaceable derailuer hanger.
The drivetrain consists of all Shimano equipment from their GRX line. The 2×10 setup is shifted by the Shimano GRX400 front and rear derailuers, up front you get 46t and 30t chainrings and the cassette is an 11-34t.
The crank however is not from the same 400 series as it is the GRX600. You get to handle this drivetrain through Shimano Tiagra shifters that are mounted to HED Eroica aluminum 31.8mm handlebars. The stem also comes from HED and features a +/-7 degree rise.
Although I couldn’t find who manufactured the hubs they are most likely from Formula since they supply a vast majority of bike manufacturers. They are aluminum sealed cartridge, center locking, and 12mm thru axle and threaded to HED Tomcat rims
The rims on the Diamondback Haanjo 4 are tubeless ready and feature an internal width of 21mm. The wheels are wrapped with the very well reviewed WTB Riddler 700x37mm tires.
Stopping this beast is a set of TRP Spyre flat mount mechanical disc brakes measuring in at 160mm. Most bikes in this price range do not come with pedals but the Haanjo 4 comes with Diamondback’s Resin Gravel platform pedals.
I recommend swapping those out as soon as possible because they don’t offer much grip and we all know sliding of the pedals is not fun at all, especially at high speed. Considering this is from one of the most recognized brands in cycling and the equipped components they’ve fitted I’d say this bike comes in at an excellent price point and just look at that color, I may have to go get one myself!