Site Name: ExtremeBits (http://www.extremebits.org)
Signup URL: https://www.extremebits.org/signup.php (usually open for signup every weekend)
Stats: 5000+ torrents
Description: ExtremeBits is for fans of extreme sports such as Skateboarding, Skiing, Rally, Surfing, Kayaking, Climbing. Street Racing, etc. Definitely the best tracker serving this niche. On a side note, it appears that XB staff were offered money to sell the tracker to a ‘corporate’- they have obviously asked the potential buyers to fcuk off. You can read the full news post on XB homepage.