Size chart and fit guide for 2026
Norco designs bikes with their Ride Aligned geometry philosophy, ensuring that each frame size delivers proportional handling and fit. Their gravity-tuned mountain bikes feature progressive reach and stack numbers that scale consistently, so riders across the size range experience identical handling characteristics regardless of frame size.
| Size | Height Range | Inseam Range |
|---|---|---|
| S | 5'2" - 5'7"(157 - 170 cm) | 28.3" - 30.7"(72 - 78 cm) |
| M | 5'6" - 5'11"(168 - 180 cm) | 30.3" - 32.7"(77 - 83 cm) |
| L | 5'10" - 6'3"(178 - 190 cm) | 32.3" - 34.6"(82 - 88 cm) |
| XL | 6'2" - 6'7"(188 - 200 cm) | 34.3" - 37.0"(87 - 94 cm) |
| Size | Height Range | Inseam Range |
|---|---|---|
| 50.5 | 5'3" - 5'7"(160 - 170 cm) | 29.1" - 31.1"(74 - 79 cm) |
| 53 | 5'6" - 5'9"(168 - 175 cm) | 30.7" - 32.3"(78 - 82 cm) |
| 55.5 | 5'8" - 5'12"(173 - 182 cm) | 31.9" - 33.5"(81 - 85 cm) |
| 58 | 5'11" - 6'3"(180 - 190 cm) | 33.1" - 35.0"(84 - 89 cm) |
| 60.5 | 6'2" - 6'6"(188 - 198 cm) | 34.6" - 36.6"(88 - 93 cm) |
| Size | Height Range | Inseam Range |
|---|---|---|
| 48 | 5'1" - 5'5"(155 - 165 cm) | 27.6" - 29.9"(70 - 76 cm) |
| 51 | 5'4" - 5'8"(163 - 173 cm) | 29.5" - 31.5"(75 - 80 cm) |
| 53 | 5'7" - 5'10"(170 - 178 cm) | 31.1" - 32.7"(79 - 83 cm) |
| 55.5 | 5'9" - 6'1"(176 - 185 cm) | 32.3" - 34.3"(82 - 87 cm) |
| 58 | 6'0" - 6'4"(183 - 193 cm) | 33.9" - 36.2"(86 - 92 cm) |
| Size | Height Range | Inseam Range |
|---|---|---|
| S | 5'2" - 5'7"(157 - 170 cm) | 28.3" - 30.7"(72 - 78 cm) |
| M | 5'6" - 5'11"(168 - 180 cm) | 30.3" - 32.7"(77 - 83 cm) |
| L | 5'10" - 6'3"(178 - 190 cm) | 32.3" - 34.6"(82 - 88 cm) |
| XL | 6'2" - 6'7"(188 - 200 cm) | 34.3" - 37.0"(87 - 94 cm) |
| Size | Height Range | Inseam Range |
|---|---|---|
| 12" | 2'8" - 3'3"(82 - 100 cm) | 11.8" - 15.7"(30 - 40 cm) |
| 16" | 3'1" - 3'9"(95 - 115 cm) | 14.6" - 18.1"(37 - 46 cm) |
| 20" | 3'7" - 4'3"(110 - 130 cm) | 17.7" - 21.7"(45 - 55 cm) |
| 24" | 3'11" - 4'9"(120 - 145 cm) | 19.7" - 24.8"(50 - 63 cm) |
Specific sizing recommendations for Norco's most popular bike models. Geometry measurements shown for reference size (typically M or 54cm).
Enduro-capable trail bike with 150mm rear and 160mm front travel. Ride Aligned geometry with long reach and slack head angle-riders who previously rode a Norco Range may find they size down one frame size in the Sight.
Downcountry trail bike with 120mm travel, 29-inch wheels, and a 66° head angle that bridges XC efficiency and trail capability. The longer-than-XC reach paired with a short stem creates a centered riding position-riders coming from pure XC bikes should compare reach values carefully, as the Optic's effective cockpit may run 10-15 mm longer than expected for the same letter size.
Adventure gravel bike with clearance for 50mm tires and dropper post routing. Slightly longer reach than pure road bikes-riders between sizes should consider the smaller frame for more responsive handling on technical gravel.
Value-oriented trail bike with 130mm travel and aluminum frame. Great entry point for trail riding with progressive geometry-size based on reach preference and riding style.
Helmets, saddles, lights and locks that fit any Norco build.

Bell
This ASIN is Small/Medium 52-57 cm. Check the selected Amazon size/color before checkout.

Avasta
Standard saddle rail spacing fits most kids' seatpost clamps. Designed primarily for 12-20" wheel kids' bikes; larger riders may prefer a wider adult saddle.

Bell
Tool-free handlebar mount; check bar space around computers, bells, and baskets.

Abus
Inner dimensions: 5.5" x 8" (14 x 20cm). Premium size for frame + wheel security. Heavy-duty for high-theft areas.

Camelbak
Standard 73mm bottle diameter. Optimized cage fit for most bike bottle cages.

Giro
S 51-55 cm, M 55-59 cm, L 59-63 cm
Use our free calculators and guides to determine your ideal Norco frame size.
Calculate your Norco road bike size
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Universal bike sizing tool
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Age & height charts, wheel sizes, and safety tips