TRANZX is a manufacturer of high end bike components, and produces a range of quality indoor trainers. It's produced by JD Corporation
The JD111 indoor trainer uses Magnetic resistance allowing it to be smooth and very quiet, it is a great performing, excellent value trainer for those who are serious about stationery trainers. Ideal for working out at home or warm up before a race. The resistance is adjustable via a handlebar mounted lever offering you 6 levels of resistance to recreate real cycling conditions, or levels of intensity for target training.
The JD-111 indoor trainer is suitable for 26" mountain bike wheels fitted with slick tyres (wider than 26 x 1.0), and 700c & 27" road tyres.
A replacement quick release skewer is included allowing you to exchange your lightweight alloy skewer and prevent it from damage when using the trainer.
Suitability: Fits all road and mountain bikes* (26", 700c & 28") (see notes below)
Resistance: Extremely Powerful Maganetic, smooth and quiet
Resistance adjustability: Handlebar mounted; Six position variable-adjust resistance lever (dia: 22.2, 25.4, 26.0 & 31.8mm)
Construction: 6061-T6 Aluminium