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5'10" · 178 cm · 4 mountain-bike charts

What size bike for a 5 ft 10 in rider?

For a five-foot-ten rider (178 cm), the mountain-bike charts read M or L, Specialized's Crossroads hybrid chart reads L, and the Diverge gravel chart reads 54 or 56. The mountain charts split between sizes at this height.

1'2'3'4'5'6'123
  1. 1Mountain bike M or L
  2. 2Hybrid L
  3. 3Rider 5'10" · 178 cm

Each chart for a five-foot-ten rider

TypeChartSizePrinted height span
Mountain bikeSpecialized FuseM or LM: 5'5"–5'10" (165–178 cm); L: 5'10"–6'1" (178–185 cm)
Mountain bikeSpecialized ChiselM or LM: 5'5"–5'10" (165–178 cm); L: 5'10"–6'1" (178–185 cm)
Mountain bikeSanta Cruz 5010LL: 5'9"–6'1" (175–185 cm)
Mountain bikeNorco RangeLL: 5'8"–6'0" (173–183 cm)
Hybrid / fitness bikeSpecialized CrossroadsLL: 5'9"–6'0" (175–183 cm)
Gravel / drop-bar bikeSpecialized Diverge54 or 5654: 5'7"–5'10" (170–178 cm); 56: 5'9"–6'0" (175–180 cm)

Charts: Specialized Fuse fit chart, Specialized Crossroads fit chart, Specialized Chisel size chart (published by evo), Specialized Diverge size chart (published by evo), Santa Cruz 5010 size chart (published by evo), Norco Range size chart (published by evo), . Charts marked "published by evo" are the brand's chart as reproduced by the retailer evo. Last checked 2026-10-20.

63 in66 in69 in72 in75 inyour heightSpecialized Fuse M5'5"–5'10"Specialized Fuse L5'10"–6'1"Specialized Chisel M5'5"–5'10"Specialized Chisel L5'10"–6'1"Santa Cruz 5010 L5'9"–6'1"Norco Range L5'8"–6'0"Specialized Crossroads L5'9"–6'0"Specialized Diverge 545'7"–5'10"Specialized Diverge 565'9"–6'0"
The rider-height span of every frame size that lists 5'10" (178 cm), in inches. The shaded line is the rider's height; a rider at the edge of two spans sits in both.

Reading the charts at five-foot-ten

At 5'10" the Specialized Fuse and Specialized Chisel and Specialized Diverge charts list the rider in two sizes, because one size's span ends where the next begins. The brands leave that choice to the rider: the smaller frame is easier to move around, the larger one more stable at speed.

Across the four mountain-bike charts the answer is M or L: Specialized Fuse M/L, Specialized Chisel M/L, Santa Cruz 5010 L, Norco Range L. Letter sizes are each brand's own, so a Norco medium and a Santa Cruz medium are not the same frame.

Checking the fit beyond height

Height charts assume average proportions. Cannondale's method uses inseam instead: "Measure your inseam with your legs 8-10 inches apart and subtract 1-2 inches for crotch clearance." Then compare that stand-over figure with the model's geometry chart and keep 1 to 2 inches (2.5 to 5 cm) of clearance over the top tube. A rider with long legs for 5'10" may suit the larger of two sizes; a long torso and short legs, the smaller with a longer stem.

Either side of five-foot-ten

A five-foot-eight rider reads M or L on the mountain charts. A six-foot rider reads L or XL.

For a five-foot-ten rider these are the brands' published height spans, a starting point for a test ride, not a bike fit. Trek is not listed: its size charts could not be read from Trek. See the methodology.

Other gear for a five-foot-ten rider

Heights near five-foot-ten

5 ft 4 in · 5 ft 6 in · 5 ft 8 in · 6 ft · 6 ft 2 in · 6 ft 4 in · all heights

Guide: bike size by height and inseam · size every category at once