Bukit tinggi got lots of gym.. This Gym Park at the T-junction there open 24 hour.. They got more flexible rate where u can pay per month, 3 months 6 months 1 years or 2.. Which go cheaper...

Another one is Gorgeous Fitness at Boulevard.. Claim to be the largest fitness center in SEA! Check it out.. But their contract is 1-2 years..

Personally I dont like contracted so I go to per month gym at Bukit Raja. I went to both.. Gorgeous is larger and some sort like Celebrity and got sauna and steam room for members.. Gym park too have steam and sauna but smaller.. Check out yourself! GOodluck!