The key advantages include:

Chuck it into your trail bag

Bonus Clear lens

Speeds- 10/11 11/12

JetBlack Z1 Pro Fluid Trainer with SQR Fit System and App PLP|Model Year The key advantages include:The JetBlack Z1 PRO Fluid is a high quality, fluid resistance bicycle trainer. Fluid resistance trainers provide a more road like' feel than magnetic trainers and this feel is increased by a higher weight flywheel. The JetBlack Z1 PRO Fluid has one of the heaviest flywheels on the market and has the longest run down time in its class. The proprietary fluid in the JetBlack Z1 PRO Fluid increases resistance exponentially, the faster you spin the harder