WARNING: California’s Proposition 65
Fox Racing Mainframe Trvrs MIPS Adult MTB Helmets (Brand New)
STYLISH, AFFORDABLE, MIPS TRAIL HELMET.
The Mainframe MIPS Helmet gives you exactly what you're looking for in an affordable helmet: proven safety features combined with easy trail steez. Featuring extended coverage to protect more of your noggin', the proven MIPS impact protection will keep your brain safe in the event of a crash by absorbing and redirecting energies and forces that could otherwise damage it.
With a lightweight fit system, the Mainframe MIPS Helmet will also keep you cool, and should the sweat stank build up, you can easily whip the moisture-wicking liner out and run it through the wash. Great protection at a price that'll save your wallet undue stress.
| S | M | L | XL | XXL | |
|---|---|---|---|---|---|
| A | Chest | 33-35 | 36-39 | 40-42 | 43-46 | 47-50 |
| B | Sleeve | 32-33 | 33-34 | 34-35 | 35-36 | 36-37 |
| C | Height | 5'6"-5'10" | 5'10"-6' | 6'-6'2" | 6'1"-6'3" | 6'1"-6'3" |
With a tape measure, hold it level and measure around the fullest part of the chest, under the arms and around the shoulder blades.
With elbow slightly bent, measure from the center behind the neck, over the point of the shoulder, around the elbow and down the wrist.
| 28 | 29 | 30 | 31 | 32 | 33 | 34 | 36 | 38 | 40 | |
|---|---|---|---|---|---|---|---|---|---|---|
| S | S | S | S | M | M | L | XL | XXL | XXL | |
| A | Waist | 28-29 | 29-30 | 30-31 | 31-32 | 32-33 | 33-34 | 34-35 | 36-37 | 38-39 | 40-41 |
| B | Hip | 34-35 | 35-36 | 36-37 | 37-38 | 38-39 | 39-40 | 40-41 | 42-43 | 44-45 | 46-47 |
| C | Inseam | 30-301/2 | 30-301/2 | 301/2-31 | 301/2-31 | 31-311/2 | 31-311/2 | 311/2-32 | 32-321/2 | 321/2-33 | 321/2-33 |
| D | Height | 5'6"-5'8" | 5'6"-5'8" | 5'8"-5'10" | 5'8"-5'10" | 5'10"-6' | 5'10"-6 | 6'-6'2" | 6'1"-6'3" | 6'1"-6'3" | 6'1"-6'3" |
With a tape measure, hold it level and measure the circumference at the waist's natural bend.
With the tape measure, hold it level and legs straight. Measure the circumference at the fullest point.
While standing without shoes and with feet slightly apart, measure from the crotch along the leg to the floor.
| 0 | 1 | 3 | 5 | 7 | 9 | 11 | |
|---|---|---|---|---|---|---|---|
| XS | XS | S | S | M | L | XL | |
| A | Bust | 31 | 33 | 34 | 35 | 36-37 | 38-39 | 39-40 |
| B | Sleeve | 28 | 29 | 29 | 30 | 30-31 | 31-311/2 | 31-311/2 |
| C | Waist | 231/2-241/2 | 241/2-251/2 | 251/2-261/2 | 261/2-271/2 | 28-29 | 291/2-301/2 | 31-32 |
| D | Hip | 34-35 | 35-36 | 36-37 | 37-38 | 38-39 | 391/2-401/2 | 41-42 |
| E | Inseam | 29 | 29 | 291/2 | 291/2 | 30 | 30 | 301/2 |
With a tape measure, hold it level and measure around the fullest part of the chest, under the arms and around the shoulder blades.
With elbow slightly bent, measure from the center behind the neck, over the point of the shoulder, around the elbow and down the wrist.
With a tape measure, hold it level and measure the circumference at the waist's natural bend.
With the tape measure, hold it level and legs straight. Measure the circumference at the fullest point.
While standing without shoes and with feet slightly apart, measure from the crotch along the leg to the floor.
| 6 (w22) | 7 (w23) | 8 (w24) | 10 (w25) | 12 (w26) | 14 (w27) | 16 (w28) | 18 (w29) | 20 (w30) | |
|---|---|---|---|---|---|---|---|---|---|
| S | S | S | M | M | L | L | XL | XL | |
| A | Chest | 24-25 | 25-26 | 26-27 | 27-28 | 28-29 | 29-30 | 31-32 | 32-33 | 33-34 |
| B | Waist | 22-23 | 23-24 | 24-25 | 25-26 | 26-27 | 27-28 | 28-29 | 29-30 | 30-31 |
| C | Inseam | 20-21 | 21-22 | 22-23 | 23-24 | 241/2-251/2 | 251/2-261/2 | 261/2-27 | 27-271/2 | 271/2-28 |
| D | Height | 46-47 | 48-49 | 51-53 | 54-56 | 57-59 | 60-62 | 63-64 | 65-66 | 66-67 |
With a tape measure, hold it level and measure around the fullest part of the chest, under the arms and around the shoulder blades.
With a tape measure, hold it level and measure the circumference at the waist's natural bend.
With the tape measure, hold it level and legs straight. Measure the circumference at the fullest point.
While standing without shoes and with feet slightly apart, measure from the crotch along the leg to the floor.
| 4 | 5 | 6 | 7 | |
|---|---|---|---|---|
| S | M | L | L | |
| Chest | 22-23 | 23-24 | 24-241/2 | 241/2-25 |
| Waist | 21-211/2 | 211/2-22 | 22-221/2 | 221/2-23 |
| Inseam | 17-18 | 18-19 | 19-20 | 20-201/2 |
| Height | 39-41 | 42-44 | 45-46 | 47-48 |
| S | M | L | |
|---|---|---|---|
| Age | 2 | 3 | 4 |
| US | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 13 |
| EU | 37.5 | 38 | 38.5 | 39 | 40 | 40.5 | 41 | 42 | 42.5 | 43 | 44 | 44.5 | 45 | 45.5 | 46 | 47.5 |
| UK | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 12 |
With tape measure level, measure the widest point of your head, approximately 1" above your eyebrows.
| X-Small | Small | Medium | Large | X-Large | XX-Large | |
|---|---|---|---|---|---|---|
| 20 7/8 - 21 1/4 | 21 1/4 - 22 1/8 | 22 3/8 - 23 1/8 | 23 1/4 - 23 3/4 | 23 1/8 - 24 3/4 | 24 1/8 - 25 3/4 | |
| Hat Size | 6 5/8 - 6 7/8 | 6 7/8 - 7 1/8 | 7 1/8 - 7 3/8 | 7 3/8 - 7 5/8 | 7 5/8 - 7 7/8 | 7 7/8 - 8 1/4 |
* Sizing information is provided by the manufacturer and does not guarantee a perfect fit.
New or Brand New - Brand new item in original packaging (original manufacturer's warranty may apply).
Refurbished - Professionally restored and in perfect working condition. Original packaging may be missing or slightly damaged.
Used - Item has seen limited use but remains in good working condition. May show some limited signs of wear with small scratches or cosmetic blemishes. May arrive with damaged packaging or be repackaged.
Refurbished, Without Tags - Same as refurbished. Item may arrive with mising labels or tags.
Refurbished, Last Call - Same as refurbished. Last call or closeout item.
| Product Image | Color | Size | SKU | Availability | Price |
|---|---|---|---|---|---|
 |
White | Small | 28422-008-S-HC1 | Out of Stock | $89.95 |
|
White | Medium | 28422-008-M-HC1 | Out of Stock | $89.95 |
|
White | Large | 28422-008-L-HC1 | Out of Stock | $89.95 |
 |
Black / Gold | Medium | 28422-595-M-HC1 | In Stock | $53.97$89.95 |
