Mountain bikes are available in different styles and unique designs, if you are a rider, you would know what suits you best but if you are a beginner, you can search and decide on a style.
Those who have to make a lot of descents, usually go for the trial bikes that also provides a great facility for climbing on the trailhead. For these bikes, 120 to 140mm suspension travel is good enough.
The second choice for speed-chasers and climbers is the Cross-Country Bikes that are more of a racing bike and for this, 80 to 100mm suspension travel is good enough.
Above all, the most liked bikes for climbing are Enduro Bikes that are offering at least 150mm suspension travel and are best known for their compact geometry which is extremely efficient for the rigorous racing as well as full-bore downhill, climbing and contouring trails. Also, reviewing the best mountain bike for climbing and downhill 2019 forum, it’s fair to say that Enduro bikes are “the best” for professional-grade climbing.
If you are a trainee and learning to run and climb, Fat Bikes with overly sized tires up to 5 inches can be a good partner for you.
Moreover, some bikes are All-Mountain Bikes that are much like the trail bikes but exclusively powerful, and thus, are used by highly skilled riders. These bikes usually offer 140 to 170mm suspension travel and this range makes them capable of performing climbing over the hill.