Your JavaScript seems to be deactivated! Please activate JavaScript to benefit from the full functionality of the shop.

100 Days Right Of Return

Free delivery from

CN / from ¥205.73 Delivery costsCN / CNYfrom ¥205.73

.ICCountryIcon{background-position-y:-286px}

Open navigation

- Categories
- Back
- Categories
- PlaceHolder
Motorcycle
Bicycle
Snow Mobile
Casual
Brands
SALE %
Gift Coupons
Stores

My bike

Home Bicycle Helmets Downhill Troy Lee Designs D4 Mips Fifty-50 Polyacrylite Downhill Helm

-20%

Troy Lee Designs D4 Mips Fifty-50 Polyacrylite Downhill Helm

from Troy Lee Designs

Please note: Helmets displayed with black or mirrored visors, will always be delivered with a clear visor!

¥2,075.40

You save 20%

¥1,660.30

Net price plus shipping; you may be liable for taxes & duties in the destination country

Notify on availability

Currently not deliverable

9 stores in Germany

Order your product online for pick-up at one of the stores.
How it works

Description
Size chart

Description

Troy Lee Designs D4 Mips Fifty-50 Polyacrylite Downhill Helmet

The undisputed king of full-face helmets continues to grow - with the D4 Polyacrylite, Troy Lee Designs is adding a model to the D4 range that packs the proven safety and comfort features of the carbon and composite versions into a price-conscious shell. The Mips® C2 brain protection, the efficient ventilation system and the first-class anatomical fit make the D4 the most sought-after full-face helmet in the mountain bike sector.

Features:

Mips® C2 rotational impact protection system for the brain
Advanced Polyacrylite shell construction
Front air intake system with high flow through polymer centre section and Power Grid side meshes
Collarbone cushioning system
Visor screws with breakaway edge
Antimicrobial padding
Quick-release, contoured 3D cheek pads for an anatomically optimised fit

Specifications:

Outer shell made of polyacrylite

Contents:

1x Troy Lee Designs D4 Mips Fifty-50 Polyacrylite Downhill Helmet
1x helmet bag

Additional product information

Features

Emergency system padding

How to take correct measurements »

Helmets

SE2 & Air
Ordering size	XS	S	M	L	XL	2XL
Head circumference (cm)	53-54	54-56	56-58	58-60	60-62	62-63

D2
Ordering size	XS/S	M/L	XL/2XL
Head circumference (cm)	53-55	56-59	60-62

D3
Ordering size	XS	S	M	L	XL	2XL
Head circumference (cm)	52-53	54-55	56-57	58-69	60-62	63-65

Knee protectors

Knee protectors
Ordering size	S	M	L	XL	2XL
Thigh circumference (cm)	37-43	43-49,5	49,5-57	57-65	57-76
Calf circumference (cm)	29-33	33-37	37-42	42-47	47-56
Knee circumference (cm)	29-33	33-38	38-43	43-48	48-56

Trousers

Kids – Grand Prix pants relaxed fit
Ordering size	18	20	22	24	26	28
Waist circumference (cm)	41	46	51	56	61	66
Inside leg length (cm)	44	49	53	56	59	61
Outer leg length (cm)	63	70	73	78	83	87

Kids – Grand Prix pants stretched fit
Ordering size	18	20	22	24	26	28
Waist circumference (cm)	51	56	61	66	71	76
Inside leg length (cm)	44	49	53	56	59	61
Outer leg length (cm)	63	70	73	78	83	87

Girls – Moto shorts
Ordering size	S (3/4)	M (5/6)	L (7/8)	XL (9/10)
Waist circumference (relaxed fit) (cm)	73.5	78.5	84	89
Waist circumference (streched fit) (cm)	78.5	84	89	94
Inside leg length (cm)	29	31	32	34
Hip circumference (cm)	98	103	108	113

Girls – Grant Prix pants
Ordering size	3/4	5/6	7/8	9/10	11/12
Waist circumference (relaxed fit) (cm)	74	79	84	89	94
Waist circumference (stretched fit) (cm)	79	84	89	94	99
Inside leg length (cm)	79	80	82	82	82
Outer leg length (cm)	104	105	107	107	107

Girls – Rev pants
Ordering size	3/4	5/6	7/8	9/10	11/12
Waist circumference (relaxed fit) (cm)	70	74	79	84	89
Waist circumference (stretched fit) (cm)	75	79	84	89	94
Inside leg length (cm)	84	85	85	85	86
Outer leg length (cm)	103	103	103	103	107

Jeans
Ordering size	30-32	34-36	38-40
Waist circumference (relaxed fit) (cm)	76-81	83-91	96-102
Inside leg length (cm)	79	81	84

Men – shorts SE, SE PRO, GP & GP AIR
Ordering size	28	30	32	34	36	38	40	42	44
Hip width (relaxed fit) (cm)	73.5	78.5	84	89	94	99	104	109	114.5
Hip width (stretched fit) (cm)	84	86.5	91.5	96.5	101.5	106.5	112	117	122
Inside leg length (cm)	77.5	78.5	81.5	82.5	85	86.5	89	91.5	91.5
Outer leg length (cm)	98	100.5	101.5	104	105.5	108	110.5	112	114.5
Knee width (cm)	28	29	30.5	31	32	33	34.5	35	36

Jerseys

Teens – SE, SE PRO, GP, GP AIR & Midnight
Ordering size	XS	S	M	L	XL
Chest width (cm)	35.5	39.5	43	47	51
Front length (cm)	58.5	61	63.5	66	68.5
Sleeve length (cm)	56	61	66	71	76

Men – SE, SE PRO, GP, GP AIR & Midnight
Ordering size	S	M	L	XL	2XL	3XL
Chest width (cm)	53.5	56	58.5	61	65	67.5
Front length (cm)	71	73.5	76	78.5	81	83.5
Sleeve length (cm)	83.5	89	94	96.5	99	99

Men – Skyline
Ordering size	S	M	L	XL	2XL
Chest width (cm)	56	58.5	61	63.5	66
Front length (cm)	62	63.5	66	68.5	71
Sleeve length (cm)	38.5	39.5	40	40.5	41.5

Men - Ruckus
Ordering size	S	M	L	XL	2XL
Chest width (cm)	56	58.5	61	63.5	66
Front length (cm)	62	63.5	66	68.5	71
Sleeve length (cm)	57	58	58.5	59	59.5

Men – Ace
Ordering size	S	M	L	XL
Chest width (cm)	48.5	51	53.5	56
Front length (cm)	55.5	57	59	61
Sleeve length (cm)	34.5	35.5	37	38

Men – Sprint
Ordering size	XS	S	M	L	XL	2XL
Chest width (cm)	51	53.5	56	58.5	61	65
Front length (cm)	66	68.5	71	73.5	76	78.5
Sleeve length (cm)	78.5	81.5	86.5	91.5	94	96.5

	A. Body height: Take off your shoes and stand barefoot with your back against a wall to measure your body height to the top of your head. B. Chest circumference: Measure horizontally around the widest part of your chest. C. Waist circumference: Measure horizontally around your waist. D. Inside leg length: Inside leg measured from the crotch to the ground.
	A. Body height: Take off your shoes and stand barefoot with your back against a wall to measure your body height to the top of your head. B. Chest circumference: Measure horizontally around the widest part of your chest. C. Waist circumference: Measure horizontally around your waist. D. Inside leg length: Inside leg measured from the crotch to the ground.
	A. Measure the circumference of your head to get the correct helmet size. Use a measuring tape around the widest point of your head (approx. 1 cm above the ears).
	A. Place both feet on a sheet of paper. Draw a vertical line to mark the tip and heel end of your foot. B. Measure the lengths of both feet. C. Compare the length of the bigger foot with the size table to find your perfect shoe size.
	A. Measure the circumference of your hand at the widest point around your palm to find the correct glove size. Copy the value into the table

Browse these categories as well: Bicycle Downhill Helmets, Helmets

Thematic areas

Service

FC Moto

Newslettersubscribe

Subscribe to the newsletter & secure yourself attractive advantages:
- Exclusive offers, new products & trends
- Attractive discounts, bargains & vouchers

- Large product range with more than 150,000 items and top rating at Trustpilot, Idealo ...

Large selection

Top brands

More than 100 brands

Products

Huge range with more than 150,000 items

Best price guarantee

Always current market prices and attractive offers

FC-Moto rating

- 100 days return policy and guarantee for reimbursement

Wolrdwide Shipping

We ship worldwide and many products directly from stock.

Easy Return For many countries, we offer a discounted return label

- Convenient payment: Advance payment, PayPal, credit card, cash on delivery, Sofort Überweisung & collection

Pay securely

Advance payment – the traditional method of payment

Cash on delivery - payment takes place at your front door.

Credit card - the convenient & fast method of payment.

PayPal – the most secure & fast method of payment

Sofort Banking - pay easily and securely with your standard online

banking details (PIN/TAN).

Collection: place a non-binding order online, then pick it up and pay in a shop