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Shimano alivio hg400 speed - shimano,

Shimano alivio hg400 speed - shimano,

£16.18
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Single speed freewheel - freewheel,

Single speed freewheel - freewheel,

£5.59
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Freewheel 10 speed bike - freewheel, 7,8,9,10

Freewheel 10 speed bike - freewheel, 7,8,9,10

£16.99
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Cycle bicycle bike - cycle-bicycle-bike, sunrace

Cycle bicycle bike - cycle-bicycle-bike, sunrace

£13.00
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Speed bike bicycle screw on - bike/bicycle,

Speed bike bicycle screw on - bike/bicycle,

£10.99
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Single speed freewheel - speed,

Single speed freewheel - speed,

£11.21
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Bucklos 12 speed - bucklos, mtb

Bucklos 12 speed - bucklos, mtb

£45.82
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Gusset single speed cassette - gusset,

Gusset single speed cassette - gusset,

£7.99
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Single speed freewheel - speed, 1/2"

Single speed freewheel - speed, 1/2"

£6.30
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12 speed cassette - 8/9/10/11/12,

12 speed cassette - 8/9/10/11/12,

£37.83
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Sturmey archer speed - sturmey,

Sturmey archer speed - sturmey,

£5.59
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Bike cassette freewheel gear - cassette,

Bike cassette freewheel gear - cassette,

£1.99
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Vintage fixie track - fixie,

Vintage fixie track - fixie,

£5.95
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Kart senzo pro - senzo, rear

Kart senzo pro - senzo, rear

£27.74
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Shimano tourney tz500 7 - tourney, mf-tz500-7

Shimano tourney tz500 7 - tourney, mf-tz500-7

£11.59
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Kart senzo sprocket carrier - go,

Kart senzo sprocket carrier - go,

£45.60
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Cog lead ribbed - lead,

Cog lead ribbed - lead,

£47.50
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Ata cassette 10 speed - ata,

Ata cassette 10 speed - ata,

£10.89
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Speed 28t bike - /, bicycle

Speed 28t bike - /, bicycle

£9.99
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Nrp single speed - single, sprocket

Nrp single speed - single, sprocket

£1.99
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Freewheel cassette sprocket - freewheel,

Freewheel cassette sprocket - freewheel,

£8.39
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Aluminum alloy stainless steel - alloy+stainless,

Aluminum alloy stainless steel - alloy+stainless,

£12.19
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Single speed 12t - single,

Single speed 12t - single,

£5.80
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Shimano mx30 single - single, speed

Shimano mx30 single - single, speed

£34.15
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Set bicycle rear hub - set, of

Set bicycle rear hub - set, of

£8.66
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Bike cycle bicycle sturmey - bike-cycle-bicycle,

Bike cycle bicycle sturmey - bike-cycle-bicycle,

£5.00
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Dmr single speed spacer kit - spacer,

Dmr single speed spacer kit - spacer,

£19.86
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Shimano hg500 road - shimano, bike

Shimano hg500 road - shimano, bike

£24.14
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Gates carbon drive - carbon,

Gates carbon drive - carbon,

£54.78
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Kart reinforced nylon - kart,

Kart reinforced nylon - kart,

£53.46
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Kart rear steel - rear, sprocket

Kart rear steel - rear, sprocket

£26.10
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Shimano m8000 11t - xt,

Shimano m8000 11t - xt,

£5.45
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Bicycle bike freewheel chain - freewheel,

Bicycle bike freewheel chain - freewheel,

£5.69
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Single speed 12t - speed, 16t

Single speed 12t - speed, 16t

£5.75
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For shimano and sram speed - 7/8,

For shimano and sram speed - 7/8,

£7.85
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Reverse components shimano - reverse, hg

Reverse components shimano - reverse, hg

£12.67
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16t 18t 20t - 18t, 22tteeth

16t 18t 20t - 18t, 22tteeth

£8.50
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Single speed 12t 14t - 14t, 16t

Single speed 12t 14t - 14t, 16t

£5.66
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Honda xl125v varadero - honda,

Honda xl125v varadero - honda,

£32.99
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Shimano hg200 speed - shimano,

Shimano hg200 speed - shimano,

£18.95
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Speed mtb cassette fit - speed,

Speed mtb cassette fit - speed,

£8.18
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Sunrun speed mega range - speed,

Sunrun speed mega range - speed,

£11.95
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Lanxuanr speed sprocket - lanxuanr, 11

Lanxuanr speed sprocket - lanxuanr, 11

£13.99
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Single speed 12t - single,

Single speed 12t - single,

£5.87
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Bicycle bike freewheel chain - bike,

Bicycle bike freewheel chain - bike,

£6.59
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Tanke single speed flywheel - tanke-single,

Tanke single speed flywheel - tanke-single,

£16.80
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Tanke 18t single speed - 18t,

Tanke 18t single speed - 18t,

£17.95
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Halo fat foot - halo,

Halo fat foot - halo,

£21.99
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Replacement tower sensor bin - replacement,

Replacement tower sensor bin - replacement,

£5.44
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Shimano alivio hg400 speed - alivio,

Shimano alivio hg400 speed - alivio,

£16.99
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Shimano speed freewheel - 7,

Shimano speed freewheel - 7,

£17.83
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Ata kdf bike single - kdf-09, single-speed

Ata kdf bike single - kdf-09, single-speed

£5.99
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Sturmey archer rear cog bike - rear,

Sturmey archer rear cog bike - rear,

£5.99
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Bicycle 14t 16t - 16t, 34mm

Bicycle 14t 16t - 16t, 34mm

£5.59
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Ata freewheel 10 speed - 8, 9

Ata freewheel 10 speed - 8, 9

£16.89
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Single speed freewheel x - freewheel, 1/2"

Single speed freewheel x - freewheel, 1/2"

£8.49
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Bucklos speed cassette - 9,

Bucklos speed cassette - 9,

£17.55
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Bike rear cassette cog - rear,

Bike rear cassette cog - rear,

£4.49
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Gusset 66c campag - 1-er,

Gusset 66c campag - 1-er,

£33.70
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Front quiet upgrade - t, jt

Front quiet upgrade - t, jt

£14.99
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24t 34mm x 1 8 - n&t,

24t 34mm x 1 8 - n&t,

£10.57
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50gm 100gm metal bronze - metal,

50gm 100gm metal bronze - metal,

£9.99
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16t front rubber sprocket - , jt

16t front rubber sprocket - , jt

£14.99
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12t 14t 16t teeth - 12t,

12t 14t 16t teeth - 12t,

£6.06
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Bicycle gear parts 16t 34mm - bicycle,

Bicycle gear parts 16t 34mm - bicycle,

£6.19
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Speed mtb bicycle - mtb,

Speed mtb bicycle - mtb,

£9.99
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Bicycle freewheel 12mm - bicycle, 9t

Bicycle freewheel 12mm - bicycle, 9t

£12.99
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Teeth bmx fixie freewheel - fixie,

Teeth bmx fixie freewheel - fixie,

£8.99
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Kart rear sprocket 63 - kart, 63-97t

Kart rear sprocket 63 - kart, 63-97t

£9.45
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Cleaner head brushroll motor - head,

Cleaner head brushroll motor - head,

£24.95
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Ata cassette 10 - ata,

Ata cassette 10 - ata,

£10.89
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Electric bike freewheel 9 - bike, 8

Electric bike freewheel 9 - bike, 8

£14.60
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Oumers bike chain whip tool - chain,

Oumers bike chain whip tool - chain,

£14.00
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Dyson dc04 dc07 - dc14, dc33

Dyson dc04 dc07 - dc14, dc33

£5.95
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Sunroof motor repair gear - motor,

Sunroof motor repair gear - motor,

£9.95
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Bucklos speed cassette - 8,

Bucklos speed cassette - 8,

£18.62
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Halo track cog satin - 1/8",

Halo track cog satin - 1/8",

£21.19
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Shimano speed tz500 7 - shimano, mf-tz500-7

Shimano speed tz500 7 - shimano, mf-tz500-7

£9.99
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Shimano deore m6100 - shimano, cs-m6100

Shimano deore m6100 - shimano, cs-m6100

£20.00
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Electric bike ata cassette - bike,

Electric bike ata cassette - bike,

£13.89
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Bicycle bike freewheel chain - bike,

Bicycle bike freewheel chain - bike,

£7.99
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Single speed 16t bronze - single,

Single speed 16t bronze - single,

£7.99
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Bmx bike bicycle 18t - bmx, 16/18t

Bmx bike bicycle 18t - bmx, 16/18t

£6.93
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Quiet rubber front sprocket - rubber,

Quiet rubber front sprocket - rubber,

£12.99
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Bike gear freewheels - , &

Bike gear freewheels - , &

£14.95
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Bike cassette freewheel - cassette, or

Bike cassette freewheel - cassette, or

£4.25
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Miche fixed tooth 8 - miche, 1/8"

Miche fixed tooth 8 - miche, 1/8"

£12.00
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Shimano 18t sprocket for nexus - shimano,

Shimano 18t sprocket for nexus - shimano,

£8.99
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Korda cog lead - cog, full

Korda cog lead - cog, full

£14.99
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Fixie teeth sprocket - fixie,

Fixie teeth sprocket - fixie,

£6.99
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Tanke 18t single speed - tanke,

Tanke 18t single speed - tanke,

£14.99
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Icetoolz 09d1 cog notch - icetoolz, 2-notch

Icetoolz 09d1 cog notch - icetoolz, 2-notch

£10.69
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Gtech airram mk2 cordless - gtech,

Gtech airram mk2 cordless - gtech,

£25.99
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Replacement cog wheel for - cog,

Replacement cog wheel for - cog,

£7.25
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Ata freewheel 10 - freewheel, 8

Ata freewheel 10 - freewheel, 8

£16.89
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Kart premium quality senzo - kart,

Kart premium quality senzo - kart,

£10.74
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📊96 listings · from £1.99 · avg £14.5
⚠️ These listings were last updated more than 22 days ago. Search for fresh listings

Browse 96 cog listings currently in our index. Prices range from £1.99 to £54.78, with an average of £14.5. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about cog →

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Everything you need to know about cog

Whether you are looking for a brand-new or second-hand cog, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £1.99, while premium listings can reach £54.78 — giving you a wide budget spread to work with. The average price of £14.5 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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