Product description

Designed for replacing the chain of your 10-speed electric bike. Compatible with 10-speed Shimano, Campagnolo and SRAM derailleurs

Our EAB chain was designed in collaboration with KMC. The links have been optimised and reinforced for unequalled robustness. The chain has 126 links and is sold with a quick release.

DECATHLON

Electric bike 10-speed chain

Dhs. 170.00

Sold out

Size Guide

MEN’S

Tops

Size	Chest (in)	Waist (in)
XS	33.1 – 34.3	27.6 – 28.7
S	34.6 – 35.8	29.1 – 30.3
M	36.2 – 37.4	30.7 – 31.9
L	37.8 – 40.6	32.3 – 35.0
XL	40.9 – 44.5	35.4 – 39.4
2XL	44.9 – 48.4	39.8 – 43.7
3XL	48.8 – 53.1	44.1 – 48.4

Bottoms

Size	Low hip (in)	Waist (in)
XS	31.5 – 33.5	26.0 – 28.0
S	33.9 – 35.8	28.3 – 30.3
M	36.2 – 38.2	30.7 – 32.7
L	38.6 – 40.9	33.1 – 35.0
XL	41.3 – 43.7	35.4 – 38.2
2XL	44.1 – 46.5	38.6 – 41.3
3XL	46.9 – 49.6	41.7 – 44.5

HOW TO MEASURE:

Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when you're looking straight ahead.

Chest: Wrap a tape measure around your back and measure the fullest part of your chest. Make sure it's straight and parallel to the floor. Look straight ahead, tighten the tape and breathe normally.

Waist: Wrap a tape measure around the narrowest part of your waist, above your belly button. Raise your head, tighten the tape and breathe normally.

Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

WOMEN’S

Tops

Size	Low hip (in)	Waist (in)
2XS	31.5 – 32.7	22.8 – 24.4
XS	33.1 – 34.3	24.4 – 25.6
S	34.6 – 35.8	26.0 – 27.2
M	36.2 – 37.4	27.6 – 28.7
L	37.8 – 40.6	29.1 – 33.1
XL	40.9 – 44.5	33.5 – 37.8
2XL	44.9 – 48.4	38.2 – 42.5

Bottoms

Size	Low hip (in)	Waist (in)
2XS	31.1 – 33.5	23.6 – 24.8
XS	33.5 – 35.4	25.2 – 26.8
S	35.4 – 37.8	27.2 – 28.7
M	37.8 – 40.2	29.1 – 31.1
L	40.2 – 42.5	31.5 – 33.9
XL	42.5 – 44.9	34.3 – 36.6
2XL	44.9 – 47.2	37.0 – 39.4

Bra

Size	Bust (in)	Underbust (in)
2XS	30.7 – 31.5	24.8 – 26.4
XS	31.5 – 33.5	24.8 – 28.3
S	33.5 – 35.4	26.8 – 30.3
M	35.4 – 37.4	28.7 – 32.3
L	37.4 – 39.4	30.7 – 34.3
XL	39.4 – 41.3	32.7 – 36.2
2XL	41.3 – 43.3	34.6 – 38.2

HOW TO MEASURE:

Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when you're looking straight ahead.

Bust: Wrap a tape measure around your back and measure the fullest part of your bust. Make sure it's straight and parallel to the floor. Look straight ahead, tighten the tape and breathe normally.

Underbust: Directly below the bust. wrap a tape measure around the ribcage. Make sure it's straight and parallel to the floor. Raise your head, tighten the tape and breathe normally.

Waist: Wrap a tape measure around the narrowest part of your waist, above your belly button. Raise your head, tighten the tape and breathe normally.

Hips: Wrap a tape measure around the fullest part of your hips.

Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

KIDS’

Boys

Age	Height (in)	Chest (in)	Waist (in)	Low hip (in)
6 months	24.0 – 27.2	16.5 – 16.9	14.6 – 15.2	16.5 – 17.1
9 months	27.6 – 28.3	16.9 – 17.3	15.2 – 15.6	17.1 – 17.7
12 months	28.7 – 29.5	17.3 – 17.7	15.6 – 16.1	17.7 – 18.5
18 months	29.9 – 31.9	18.1 – 18.5	16.3 – 16.9	18.5 – 19.3
24 months	32.3 – 34.6	18.9 – 19.3	17.3 – 18.1	19.3 – 20.3
2 – 3 years	35.0 – 37.4	19.7 – 20.1	18.1 – 18.9	20.3 – 20.9
3 – 4 years	37.8 – 40.2	20.5 – 21.3	19.3 – 20.1	21.3 – 22.4
4 – 5 years	40.6 – 44.1	21.7 – 22.4	20.1 – 20.9	22.8 – 24.0
5 – 6 years	44.5 – 48.0	22.8 – 23.6	20.9 – 21.7	24.4 – 25.6
7 – 8 years	48.4 – 51.2	24.4 – 24.8	21.7 – 22.4	26.0 – 27.2
8 – 9 years	51.6 – 55.1	25.2 – 26.4	22.8 – 23.6	27.6 – 28.7
10 – 11 years	55.5 – 59.1	26.8 – 28.7	24.0 – 25.2	29.1 – 30.3
12 – 13 years	59.4 – 63.0	29.1 – 31.5	25.6 – 27.2	30.7 – 33.1
14 – 15 years	63.4 – 67.7	31.9 – 34.6	27.6 – 29.1	33.5 – 35.8

Girls

Age	Height (in)	Chest (in)	Waist (in)	Low hip (in)
6 months	24.0 – 27.2	15.4 – 16.9	13.4 – 15.2	15.4 – 17.1
9 months	27.6 – 28.3	16.9 – 17.3	15.2 – 15.6	17.1 – 17.7
12 months	28.7 – 29.5	17.3 – 17.7	15.6 – 16.1	17.7 – 18.5
18 months	29.9 – 31.9	18.1 – 18.5	16.3 – 16.9	18.5 – 19.3
24 months	32.3 – 34.6	18.9 – 19.3	17.3 – 18.1	19.3 – 20.3
2 – 3 years	35.0 – 37.4	19.7 – 20.1	18.1 – 18.9	20.3 – 20.9
3 – 4 years	37.8 – 40.2	20.5 – 21.3	19.3 – 20.1	21.3 – 22.4
4 – 5 years	40.6 – 44.1	21.7 – 22.4	20.1 – 20.9	22.8 – 24.0
5 – 6 years	44.5 – 48.0	22.8 – 23.6	20.9 – 21.7	24.4 – 25.6
7 – 8 years	48.4 – 51.2	24.4 – 24.8	21.7 – 22.4	26.0 – 27.2
8 – 9 years	51.6 – 55.1	25.2 – 26.4	22.8 – 23.6	27.6 – 28.7
10 – 11 years	55.5 – 58.3	26.8 – 28.0	24.0 – 24.8	29.1 – 31.9
12 – 13 years	58.7 – 62.6	28.3 – 31.9	25.2 – 26.4	32.3 – 35.0
14 – 15 years	63.0 – 65.4	32.3 – 33.9	26.8 – 28.0	35.4 – 36.6

HOW TO MEASURE:

Height:Stand against a wall, barefoot or in socks, heels pasted to the wall. Stand right, then hold a book or flat object on the top of your head. Block the book, mark the bottom edge of the book. Measure the distance from the floor to the mark.

Head:Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when your head is straight.

Hand:Hold a tape measure at the bend of the thumb. Wrap around your palm.

FOOTWEAR

Men's Footwear

US Size	Foot length (in)	EU Size	Foot length (cm)
6	9.6	38.5	24.5
6.5	9.6	39	24.5
7	9.8	39.5	25
7.5	10	40	25.5
7.5	10	40.5	25.5
8	10.2	41	26
8.5	10.4	41.5	26.5
9	10.4	42	26.5
9.5	10.6	42.5	27
9.5	10.8	43	27.5
10	11	43.5	27.5
10.5	11	44	28
11	11.2	44.5	28.5
11.5	11.2	45	28.5
11.5	11.4	45.5	29
12	11.6	46	29.5
12.5	11.6	46.5	29.5

Women's Footwear

US Size	Foot length (in)	EU Size	Foot length (cm)
4	8.25	34	20.8
4.5	8.5	34.5	21.3
5	8.7	35	22
5.5	8.9	35.5	22.5
5.5	8.9	36	22.5
6	9.1	36.5	23
6.5	9.3	37	23.5
7	9.3	37	23.5
7.5	9.4	38	24
7.5	9.6	38.5	24.5
8	9.6	39	24.5
8.5	9.8	39.5	25
9	10	40	25.5
9	10	40.5	25.5
9.5	10.2	41	26
10	10.4	41.5	26.5
10.5	10.4	42	26.5

Unisex Footwear

Women's / Men's US Size	Foot length (in)	EU Size	Foot length (cm)
W5 / M3.5	8.6	35	21.9
W5.5 / M4	8.9	36	22.5
W6 / M4.5	9.1	36.5	23
W6.5 / M5	9.3	37	23.5
W7 / M5.5	9.3	37.5	23.5
W7.5 / M6	9.4	38	24
W8 / M6.5	9.6	39	24.5
W8.5 / M7	9.8	39.5	25
W9 / M7.5	10	40	25.5
W9.5 / M8	10.2	41	26
W10 / M8.5	10.4	41.5	26.5
W10.5 / M9	10.4	42	26.5
W11 / M9.5	10.8	43	27.5
W11.5 / M10	11	43.5	27.5
W12 / M10.5	11	44	28
W12.5 / M11	11.2	44.5	28.5
W13 / M11.5	11.2	45	28.5
W14 / M12	11.6	46	29.5
W15 / M13	11.8	47	30
W16 / M13.5	12	48	30.5

HOW TO MEASURE:

Foot length:Stand against a wall, heels touching the wall. Put an object (e.g. book...) against your longest toe. Measure the length between the wall and the object. Repeat this process for the other foot. If the lengths are different, choose the largest.

ACCESSORIES

Headwear (Caps, Beanies, Hats)

US Size	Head (in)
2XS	18.5 – 19.7
XS	19.7 – 20.9
S	20.9 – 22.0
M	22.0 – 23.2
L	23.2 – 24.4

Helmets

US Size	Head (in)
2XS	17.3 – 19.3
XS	18.5 – 20.5
S	20.5 – 21.7
M	21.7 – 23.2
L	23.2 – 24.4

Gloves

Size	Palm perimeter (in)	Hand length (in)
2XS	7.0 – 7.3	6.3 – 6.6
XS	7.3 – 7.6	6.7 – 6.9
S	7.6 – 7.9	7.0 – 7.2
M	8.0 – 8.2	7.2 – 7.4
L	8.3 – 8.5	7.4 – 7.7
XL	8.6 – 8.9	7.7 – 7.9
2XL	8.9 – 9.2	8.0 – 8.1
3XL	9.2 – 9.5	8.2 – 8.4

HOW TO MEASURE:

Head:Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when your head is straight.

Hand:Hold a tape measure at the bend of the thumb. Wrap around your palm.

BIKES

Kids' Bikes

Bike size	Height (ft)
12"	2'5" – 3'0"
14"	3'0" – 3'5"
16"	3'5" – 3'11"
20"	3'11" – 4'5"
24"	4'5" – 5'1"

Road & Gravel Bikes

Bike size	Height (ft)
XS	5'1" – 5'5"
S	5'5" – 5'8"
M	5'8" – 5'11"
L	5'11" – 6'2"
XL	6'2" – 6'7"

Mountain Bikes

Bike size	Height (ft)
S	4'11" – 5'5"
M	5'5" – 5'9"
L	5'9" – 6'0"
XL	6'0" – 6'7"

Size Guide

MEN’S

Tops

Size	Chest (in)	Waist (in)
XS	33.1 – 34.3	27.6 – 28.7
S	34.6 – 35.8	29.1 – 30.3
M	36.2 – 37.4	30.7 – 31.9
L	37.8 – 40.6	32.3 – 35.0
XL	40.9 – 44.5	35.4 – 39.4
2XL	44.9 – 48.4	39.8 – 43.7
3XL	48.8 – 53.1	44.1 – 48.4

Bottoms

Size	Low hip (in)	Waist (in)
XS	31.5 – 33.5	26.0 – 28.0
S	33.9 – 35.8	28.3 – 30.3
M	36.2 – 38.2	30.7 – 32.7
L	38.6 – 40.9	33.1 – 35.0
XL	41.3 – 43.7	35.4 – 38.2
2XL	44.1 – 46.5	38.6 – 41.3
3XL	46.9 – 49.6	41.7 – 44.5

HOW TO MEASURE:

Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when you're looking straight ahead.

Waist: Wrap a tape measure around the narrowest part of your waist, above your belly button. Raise your head, tighten the tape and breathe normally.

Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

WOMEN’S

Tops

Size	Low hip (in)	Waist (in)
2XS	31.5 – 32.7	22.8 – 24.4
XS	33.1 – 34.3	24.4 – 25.6
S	34.6 – 35.8	26.0 – 27.2
M	36.2 – 37.4	27.6 – 28.7
L	37.8 – 40.6	29.1 – 33.1
XL	40.9 – 44.5	33.5 – 37.8
2XL	44.9 – 48.4	38.2 – 42.5

Bottoms

Size	Low hip (in)	Waist (in)
2XS	31.1 – 33.5	23.6 – 24.8
XS	33.5 – 35.4	25.2 – 26.8
S	35.4 – 37.8	27.2 – 28.7
M	37.8 – 40.2	29.1 – 31.1
L	40.2 – 42.5	31.5 – 33.9
XL	42.5 – 44.9	34.3 – 36.6
2XL	44.9 – 47.2	37.0 – 39.4

Bra

Size	Bust (in)	Underbust (in)
2XS	30.7 – 31.5	24.8 – 26.4
XS	31.5 – 33.5	24.8 – 28.3
S	33.5 – 35.4	26.8 – 30.3
M	35.4 – 37.4	28.7 – 32.3
L	37.4 – 39.4	30.7 – 34.3
XL	39.4 – 41.3	32.7 – 36.2
2XL	41.3 – 43.3	34.6 – 38.2

HOW TO MEASURE:

Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when you're looking straight ahead.

Underbust: Directly below the bust. wrap a tape measure around the ribcage. Make sure it's straight and parallel to the floor. Raise your head, tighten the tape and breathe normally.

Waist: Wrap a tape measure around the narrowest part of your waist, above your belly button. Raise your head, tighten the tape and breathe normally.

Hips: Wrap a tape measure around the fullest part of your hips.

Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.

KIDS’

Boys

Age	Height (in)	Chest (in)	Waist (in)	Low hip (in)
6 months	24.0 – 27.2	16.5 – 16.9	14.6 – 15.2	16.5 – 17.1
9 months	27.6 – 28.3	16.9 – 17.3	15.2 – 15.6	17.1 – 17.7
12 months	28.7 – 29.5	17.3 – 17.7	15.6 – 16.1	17.7 – 18.5
18 months	29.9 – 31.9	18.1 – 18.5	16.3 – 16.9	18.5 – 19.3
24 months	32.3 – 34.6	18.9 – 19.3	17.3 – 18.1	19.3 – 20.3
2 – 3 years	35.0 – 37.4	19.7 – 20.1	18.1 – 18.9	20.3 – 20.9
3 – 4 years	37.8 – 40.2	20.5 – 21.3	19.3 – 20.1	21.3 – 22.4
4 – 5 years	40.6 – 44.1	21.7 – 22.4	20.1 – 20.9	22.8 – 24.0
5 – 6 years	44.5 – 48.0	22.8 – 23.6	20.9 – 21.7	24.4 – 25.6
7 – 8 years	48.4 – 51.2	24.4 – 24.8	21.7 – 22.4	26.0 – 27.2
8 – 9 years	51.6 – 55.1	25.2 – 26.4	22.8 – 23.6	27.6 – 28.7
10 – 11 years	55.5 – 59.1	26.8 – 28.7	24.0 – 25.2	29.1 – 30.3
12 – 13 years	59.4 – 63.0	29.1 – 31.5	25.6 – 27.2	30.7 – 33.1
14 – 15 years	63.4 – 67.7	31.9 – 34.6	27.6 – 29.1	33.5 – 35.8

Girls

Age	Height (in)	Chest (in)	Waist (in)	Low hip (in)
6 months	24.0 – 27.2	15.4 – 16.9	13.4 – 15.2	15.4 – 17.1
9 months	27.6 – 28.3	16.9 – 17.3	15.2 – 15.6	17.1 – 17.7
12 months	28.7 – 29.5	17.3 – 17.7	15.6 – 16.1	17.7 – 18.5
18 months	29.9 – 31.9	18.1 – 18.5	16.3 – 16.9	18.5 – 19.3
24 months	32.3 – 34.6	18.9 – 19.3	17.3 – 18.1	19.3 – 20.3
2 – 3 years	35.0 – 37.4	19.7 – 20.1	18.1 – 18.9	20.3 – 20.9
3 – 4 years	37.8 – 40.2	20.5 – 21.3	19.3 – 20.1	21.3 – 22.4
4 – 5 years	40.6 – 44.1	21.7 – 22.4	20.1 – 20.9	22.8 – 24.0
5 – 6 years	44.5 – 48.0	22.8 – 23.6	20.9 – 21.7	24.4 – 25.6
7 – 8 years	48.4 – 51.2	24.4 – 24.8	21.7 – 22.4	26.0 – 27.2
8 – 9 years	51.6 – 55.1	25.2 – 26.4	22.8 – 23.6	27.6 – 28.7
10 – 11 years	55.5 – 58.3	26.8 – 28.0	24.0 – 24.8	29.1 – 31.9
12 – 13 years	58.7 – 62.6	28.3 – 31.9	25.2 – 26.4	32.3 – 35.0
14 – 15 years	63.0 – 65.4	32.3 – 33.9	26.8 – 28.0	35.4 – 36.6

HOW TO MEASURE:

Head:Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when your head is straight.

Hand:Hold a tape measure at the bend of the thumb. Wrap around your palm.

FOOTWEAR

Men's Footwear

US Size	Foot length (in)	EU Size	Foot length (cm)
6	9.6	38.5	24.5
6.5	9.6	39	24.5
7	9.8	39.5	25
7.5	10	40	25.5
7.5	10	40.5	25.5
8	10.2	41	26
8.5	10.4	41.5	26.5
9	10.4	42	26.5
9.5	10.6	42.5	27
9.5	10.8	43	27.5
10	11	43.5	27.5
10.5	11	44	28
11	11.2	44.5	28.5
11.5	11.2	45	28.5
11.5	11.4	45.5	29
12	11.6	46	29.5
12.5	11.6	46.5	29.5

Women's Footwear

US Size	Foot length (in)	EU Size	Foot length (cm)
4	8.25	34	20.8
4.5	8.5	34.5	21.3
5	8.7	35	22
5.5	8.9	35.5	22.5
5.5	8.9	36	22.5
6	9.1	36.5	23
6.5	9.3	37	23.5
7	9.3	37	23.5
7.5	9.4	38	24
7.5	9.6	38.5	24.5
8	9.6	39	24.5
8.5	9.8	39.5	25
9	10	40	25.5
9	10	40.5	25.5
9.5	10.2	41	26
10	10.4	41.5	26.5
10.5	10.4	42	26.5

Unisex Footwear

Women's / Men's US Size	Foot length (in)	EU Size	Foot length (cm)
W5 / M3.5	8.6	35	21.9
W5.5 / M4	8.9	36	22.5
W6 / M4.5	9.1	36.5	23
W6.5 / M5	9.3	37	23.5
W7 / M5.5	9.3	37.5	23.5
W7.5 / M6	9.4	38	24
W8 / M6.5	9.6	39	24.5
W8.5 / M7	9.8	39.5	25
W9 / M7.5	10	40	25.5
W9.5 / M8	10.2	41	26
W10 / M8.5	10.4	41.5	26.5
W10.5 / M9	10.4	42	26.5
W11 / M9.5	10.8	43	27.5
W11.5 / M10	11	43.5	27.5
W12 / M10.5	11	44	28
W12.5 / M11	11.2	44.5	28.5
W13 / M11.5	11.2	45	28.5
W14 / M12	11.6	46	29.5
W15 / M13	11.8	47	30
W16 / M13.5	12	48	30.5

HOW TO MEASURE:

ACCESSORIES

Headwear (Caps, Beanies, Hats)

US Size	Head (in)
2XS	18.5 – 19.7
XS	19.7 – 20.9
S	20.9 – 22.0
M	22.0 – 23.2
L	23.2 – 24.4

Helmets

US Size	Head (in)
2XS	17.3 – 19.3
XS	18.5 – 20.5
S	20.5 – 21.7
M	21.7 – 23.2
L	23.2 – 24.4

Gloves

Size	Palm perimeter (in)	Hand length (in)
2XS	7.0 – 7.3	6.3 – 6.6
XS	7.3 – 7.6	6.7 – 6.9
S	7.6 – 7.9	7.0 – 7.2
M	8.0 – 8.2	7.2 – 7.4
L	8.3 – 8.5	7.4 – 7.7
XL	8.6 – 8.9	7.7 – 7.9
2XL	8.9 – 9.2	8.0 – 8.1
3XL	9.2 – 9.5	8.2 – 8.4

HOW TO MEASURE:

Head:Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when your head is straight.

Hand:Hold a tape measure at the bend of the thumb. Wrap around your palm.

BIKES

Kids' Bikes

Bike size	Height (ft)
12"	2'5" – 3'0"
14"	3'0" – 3'5"
16"	3'5" – 3'11"
20"	3'11" – 4'5"
24"	4'5" – 5'1"

Road & Gravel Bikes

Bike size	Height (ft)
XS	5'1" – 5'5"
S	5'5" – 5'8"
M	5'8" – 5'11"
L	5'11" – 6'2"
XL	6'2" – 6'7"

Mountain Bikes

Bike size	Height (ft)
S	4'11" – 5'5"
M	5'5" – 5'9"
L	5'9" – 6'0"
XL	6'0" – 6'7"

Color : Unique

Size: Unique size

Ref: 8615101

Variant

Home Delivery 4 - 6 Days

Up to 2-year warranty

Secure Payments

Product description

Designed for replacing the chain of your 10-speed electric bike. Compatible with 10-speed Shimano, Campagnolo and SRAM derailleurs

Our EAB chain was designed in collaboration with KMC. The links have been optimised and reinforced for unequalled robustness. The chain has 126 links and is sold with a quick release.

Description

Designed for replacing the chain of your 10-speed electric bike. Compatible with 10-speed Shimano, Campagnolo and SRAM derailleurs

Need Help?

The technicians at your Decathlon store workshop are available to help you replace your bike's parts. Feel free to ask them for help!

Mounting

Easy to mount by adapting the chain length with a chain tool (ref: 8938258) by positioning the quick release supplied in the pack.For Narrow Wide bottom brackets the narrow teeth correspond with the interior of the chain link, and the wide teeth correspond to the outer part of the chain link.

Care tips

Degrease, clean and lubricate your chain regularly to prolong its lifespan. We recommend changing the cassette when changing the chain.Do not clean using high-pressure water jets or aggressive degreasers

Tech Specs

Specifications: 1/2" x 11/128" " Link length: 5.88 mm Length: 126 links Quick-release: provided Weight: 250g High performance 10-speed derailleur systems for electric bikes with a central motor Compatible with Narrow Wide bottom brackets. Colour:SILVER

Our EAB chain was designed in collaboration with KMC. The links have been optimised and reinforced for unequalled robustness. The chain has 126 links and is sold with a quick release.

Designed for replacing the chain of your 10-speed electric bike. Compatible with 10-speed Shimano, Campagnolo and SRAM derailleurs

Need Help?

The technicians at your Decathlon store workshop are available to help you replace your bike's parts. Feel free to ask them for help!

Mounting

Care tips

Tech Specs

Our EAB chain was designed in collaboration with KMC. The links have been optimised and reinforced for unequalled robustness. The chain has 126 links and is sold with a quick release.

Designed for replacing the chain of your 10-speed electric bike. Compatible with 10-speed Shimano, Campagnolo and SRAM derailleurs