If youre looking to improve your training, there's no better way to spend your money than on a power meter. While youll also need an accompanying bike computer to realise the results, training with power enables you to calculate efforts and training load, and track your fitness. Training by power was once the reserve of professional cyclists, with power meters more expensive than many top-spec bikes when they first launched. Now, with this deal from Merlin Cycles, you could have a power meter for only 189. Only the crank arm is recycled. Merlin Cycles You may be wondering how this is possible, but the device is part of 4iiiis reCYCLED programme. The brand takes in used Shimano 105 R7000 crank arms and installs a brand new 4iiii Precision 3+ Powermeter. Merlin says all Ride Ready reCYCLED cranks come with 4iiii's legendary three-year warranty. Power meters are great for real-world training data. Nick Clark / Our Media This deal is so good that even my father couldnt resist, scooping one up for his winter hack bike. Hes had no issues with it, and there was hardly any wear to the arm before hed done a winter in his SPD-equipped Wellington boots. If you're like my dad, you'll scuff them up in a season anyway. Nick Clark / Our Media Merlin says it has photographed the average marks on the crank arms for its website, with the ones you receive possibly being different from those shown due to the number of power meters it has in stock. The power meter itself features an Apple Find My feature, which could prove useful should your bike be stolen. If you want to up your training this spring, be sure to check the link below: Buy the recycled 4iiii Precision 3.0+ power meter now from Merlin Cycles