Size and Fit Guide

Use the charts below to find your ideal fit. All measurements are standard; refer to each brand’s official guidelines for the latest specifications.

 

3T Bikes — Frame Size Guide

Measured in cm — recommended for road/gravel use. Sizing based on rider height; adjust for reach/preference.

Frame Size Frame Height (cm) Rider Height (cm) Rider Height (ft/in)
XXS 49 152–160 5'0"–5'3"
XS 52 158–166 5'2"–5'5"
S 54 164–172 5'5"–5'8"
M 56 170–178 5'7"–5'10"
L 58 176–184 5'9"–6'0"
XL 60 182–190 5'11"–6'3"
XXL 62 188–198 6'2"–6'6"
Note: Reach, stack, and inseam also affect fit. Contact us for geometry charts and sizing advice.

Limar Helmets — Head Size Chart

Measure circumference horizontally above eyebrows and around the widest part of the head.

Helmet Size Head Circumference (cm) Head Circumference (in)
XS 49–53 19.3–20.9
S 52–56 20.5–22.0
M 55–59 21.7–23.2
L 58–62 22.8–24.4
XL 61–64 24.0–25.2
Tip: If between sizes, choose the smaller one for a snug fit, or larger for thicker hair.

Bioracer Cycling Clothing — Apparel Sizing

Measure chest, waist, and hips close to the body. All measurements in cm.

Men’s / Unisex

Size Chest Waist Hips
XS 86–91 74–79 88–93
S 91–96 79–84 93–98
M 96–101 84–89 98–103
L 101–106 89–94 103–108
XL 106–112 94–100 108–114
XXL 112–118 100–106 114–120


Women’s

Size Chest Waist Hips
XS 80–85 64–69 86–91
S 85–90 69–74 91–96
M 90–95 74–79 96–101
L 95–100 79–84 101–106
XL 100–106 84–90 106–112
Fit Note: Bioracer offers an athletic/race cut. For a relaxed fit, size up. Check sleeve/leg length details on specific product pages.

Crono Cycling Shoes — Foot Size Chart

Measure foot length from heel to longest toe. Measure in cm for best accuracy.

EU Size UK Size US Men’s Foot Length (cm)
38 4.5 5.5 24.0
39 5.5 6.5 24.7
40 6.5 7.5 25.3
41 7 8 26.0
42 8 9 26.7
43 9 10 27.3
44 9.5 10.5 28.0
45 10.5 11.5 28.7
46 11 12 29.3
47 12 13 30.0
48 13 14 30.7
Tip: Leave ~1–1.5 cm of space at the toe. Wide feet or high instep: consider sizing up half a size.

AGU Bike Bags & Luggage — Capacity & Dimensions

Sizes based on volume and intended use. Dimensions L × W × H (cm).

Model / Size Capacity (Litres) Dimensions (cm) Best For
Small Seat Bag 0.8–1.5 12 × 7 × 5 Spare tube, levers, patch kit
Medium Seat Bag 2–4 18 × 8 × 7 Tube, tools, phone, wallet
Large Seat Bag 5–8 23 × 10 × 9 Long ride essentials, rain jacket
Frame Bag S 3–4 40 × 6 × 10 Top tube storage
Frame Bag M 5–6 50 × 6 × 10 Standard road/gravel frames
Pannier (Single) 12–15 35 × 15 × 30 Daily commute
Pannier (Pair) 24–30 35 × 30 × 30 Weekend touring
Handlebar Bag 8–10 25 × 15 × 20 Snacks, map, camera
Note: Check your bike’s mounting points and clearance before purchasing.

Challenge Handmade Tyres — Size Compatibility

Common sizes — all dimensions: ETRTO / Size Name / Approx Weight. Choose to match your rim width and frame clearance.

ETRTO Size Common Size Name Fits Rim Width (Internal) Min–Max Pressure (bar)
23-622 700 × 23c 15–17 mm 6.0–8.0
25-622 700 × 25c 17–19 mm 5.5–7.5
28-622 700 × 28c 17–21 mm 5.0–7.0
30-622 700 × 30c 19–23 mm 4.5–6.5
32-622 700 × 32c 19–25 mm 4.0–6.0
35-622 700 × 35c 21–27 mm 3.5–5.5
40-622 700 × 40c 23–29 mm 3.0–5.0
42-622 700 × 42c 25–30 mm 3.0–4.5
47-622 700 × 47c 27–32 mm 2.5–4.0
50-622 700 × 50c 29–34 mm 2.5–4.0
Guidelines: Match rim width to tyre width per ETRTO standards. Check frame/fork clearance before ordering. Always inflate within the marked range.

General Sizing Advice

  • Measure twice, order once — use a tape measure and follow each chart’s instructions.
  • If between sizes: Helmets → choose smaller; Clothing → race fit = smaller, relaxed = larger; Shoes → choose larger.
  • Still unsure? Contact us with your measurements, bike model, and intended use — we’ll help you choose.