Standardna Ti zliatina, co sa predava je cca ekv. teraz neviem 8.9 alebo 10.8 .. je to pevnejsie ako nepevnostna ocel, ale slabsie ako tie pevnejsie ocelove. Ale prilis pevne ocelove nie su dobre, sice vydrzia velky tah, ale su krehke a povacsine skrutky na bajku trpia aj na ine zatazenie ako priamy tah. V tomto pripade treba pozriet, ci tam boli pevnostne skrutky a hlavne ci neboli podotahovane zle .. lebo spravne musi byt medzera medzi predstavcom a dostickou vsade rovnomerna, inak je potom cast pretazena viac, a cast menej. A momentakom to zistit nejde.
Bade: zalezi ako ktore, imho skor utrhnes hlavu skrutky, ako rozpucis rajdy.
Tu take light vysvetlenie pre skrutky od Syntace - co by to mala byt garantovana zliatina.
"Titanium bolts come closest to steel in terms of strength but Ti is 47% lighter.
Note, although Ti bolts can be as strong as mild steel bolts,they are no substitute for high tensile steel bolts. Syntace sell some high quality Ti bolts and here is what they say about high-tensile bolt replacement:
Syntace titanium bolts are no substitute for bolts above 8.8 strength - recognizable through stampings of 10.9 or 12.9 on the screw head. If in doubt you have to assume that titanium bolts are NOT suited for the application to ensure your own safety.
Accordingly, if you need to replace 8.8 strength bolts, then make sure you are using the strongest and best Ti bolts you can get. DO NOT replace 10.9 or 12.9 bolts with Ti. The most common places to find high-tensile bolts on your bicycle will be holding the suspension pivots together."