Publicado Por En julio 26, 2026 TI316 Rail. Rugged enough for any trail, yet light enough to top the podium, the SLR Boost X-Cross TI 316 Superflow is the ideal choice for any serious cross-country mountain biker. built-in shock absorbers and TI 316 rails help smooth out rough, technical trails and are reinforced with SuperFabric inserts, this saddle is one of the most durable on the market.