help i have a gear problem

[kran]

i have been driving my mazda for the past 2 years without any major problems but 2 days a go i have faced a problem where the 3rd gear is not taking me beyond 50 kmph

why

[umeedshah]

gear, and electrical problems are to be see at as its something that needs to be looked at what i think is that the gear is not able to engage so.

[aminarzu]

where have you got the gear fixed it could also be speed sensor too