Marin Bike Size Chart
Size chart and fit guide for 2026
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Born in the birthplace of mountain biking, Marin designs bikes with a focus on versatile trail performance and rider confidence. Their MultiTrac suspension and progressive geometry ensure consistent handling across all frame sizes, with reach and stack numbers that scale proportionally to deliver the same ride feel from XS to XL.
Marin Size Charts by Category
Marin Mountain Bike Size Chart
| 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) |
Marin Gravel Bike Size Chart
| Size | Height Range | Inseam Range |
|---|---|---|
50 | 5'3" - 5'6"(160 - 168 cm) | 29.1" - 30.7"(74 - 78 cm) |
52 | 5'5" - 5'8"(166 - 173 cm) | 30.3" - 31.9"(77 - 81 cm) |
54 | 5'7" - 5'11"(171 - 180 cm) | 31.5" - 33.1"(80 - 84 cm) |
56 | 5'10" - 6'1"(178 - 186 cm) | 32.7" - 34.3"(83 - 87 cm) |
58 | 6'0" - 6'5"(184 - 196 cm) | 33.9" - 36.2"(86 - 92 cm) |
Marin Hybrid Bike Size Chart
| Size | Height Range | Inseam Range |
|---|---|---|
XS | 4'12" - 5'4"(152 - 163 cm) | 27.2" - 29.5"(69 - 75 cm) |
S | 5'3" - 5'7"(161 - 170 cm) | 29.1" - 31.1"(74 - 79 cm) |
M | 5'6" - 5'10"(168 - 178 cm) | 30.7" - 32.7"(78 - 83 cm) |
L | 5'9" - 6'2"(176 - 188 cm) | 32.3" - 34.6"(82 - 88 cm) |
XL | 6'1" - 6'6"(186 - 198 cm) | 34.3" - 36.6"(87 - 93 cm) |
Marin Road Bike Size Chart
| Size | Height Range | Inseam Range |
|---|---|---|
49 | 5'1" - 5'5"(155 - 165 cm) | 27.6" - 29.9"(70 - 76 cm) |
52 | 5'4" - 5'8"(163 - 173 cm) | 29.5" - 31.5"(75 - 80 cm) |
54 | 5'7" - 5'10"(170 - 178 cm) | 31.1" - 32.7"(79 - 83 cm) |
56 | 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) |
Marin Kids Bike Size Chart
| 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) |
Popular Marin Models & Sizing Notes
Specific sizing recommendations for Marin's most popular bike models. Geometry measurements shown for reference size (typically M or 54cm).
Marin Rift Zone 29 3
🚵 Mountain Bike • 2025Trail bike with 130mm MultiTrac suspension and 29-inch wheels. Progressive geometry with modern reach numbers-riders transitioning from older bikes may find they prefer a smaller size in the Rift Zone.
Marin Alpine Trail 8
🚵 Mountain Bike • 2025Long-travel enduro bike with 160mm rear and 170mm front travel. Aggressive geometry built for descending-riders should consider reach over standover height when selecting frame size.
Marin Gestalt X11
🏔️ Gravel Bike • 2025Adventure gravel bike with clearance for 45mm tires and multiple mount points for bikepacking. Endurance-oriented geometry with comfortable reach-size as you would for a road bike.
Marin Fairfax 2
🚲 Hybrid Bike • 2025Urban fitness hybrid with flat bars and lightweight aluminum frame. Upright position ideal for commuting and fitness riding-most riders fit true to the height chart.
Marin Sizing Tips
How to Measure
- • Height: Stand barefoot against a wall and measure from floor to top of head
- • Inseam: Stand barefoot with feet 6 inches apart, press a level book firmly upward, and measure from the floor to its top edge
- • Arm Reach: For road bikes, measure from shoulder to fingertips
When Between Sizes
- • Comfort priority: Choose the larger size
- • Performance priority: Choose the smaller size
- • Long torso: Size up for better reach
- • Long legs: Size down for better standover
Marin Sizing FAQ
Accessories for Marin bikes
Helmets, saddles, lights and locks that fit any Marin build.
Bell
Bell Nomad 2 MIPS
This ASIN is Small/Medium 52-57 cm. Check the selected Amazon size/color before checkout.
Avasta
AVASTA Kids Bicycle Saddle
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
Bell Lumina 300 Headlight
Tool-free handlebar mount; check bar space around computers, bells, and baskets.
Abus
ABUS Granit X-Plus 540
Inner dimensions: 5.5" x 8" (14 x 20cm). Premium size for frame + wheel security. Heavy-duty for high-theft areas.
Bivo
Bivo Duo 25 oz Stainless Bottle
Fits most major cages, but the 77 mm maximum diameter is a touch larger than a standard plastic bottle. Check tight side-load cages on very small frames.
Giro
Giro Register MIPS
S 51-55 cm, M 55-59 cm, L 59-63 cm
Marin Comparisons & Guides
Find Your Marin Size
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