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Accessories

Browse through our vast range of cycling and triathlon accessories. From front and rear bike lights to bottle cages, GPS computers to chamois cream, and cycling backpacks to pannier racks, here at Sigma Sports we have what you're looking for. We stock great accessories from your favourite brands, including Specialized, Wahoo, GoPro, Garmin and Park Tool.

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Accessories

Size
- XS 9
- S 26
- S/M 16
- M 25
- M/L 13
- L 38
- L/XL 7
- XL 15
- XXL 1
- 1.5mm 1
- 10mm 1
- 110BCD 1
- 11mm 1
- 12mm 1
- 12x100mm 1
- 130BCD 1
- 13mm 2
- 140mm 1
- 14mm 2
- 15mm 2
- 16 Notch - 39mm 1
- 16 Notch - 41mm 1
- 16 Notch - 44mm 1
- 16 Notch - 48mm 1
- 160mm 2
- 165mm 22
- 165mm 46/33 1
- 165mm 48T 1
- 165mm 50/34 6
- 165mm 50/37 1
- 165mm 50T 1
- 165mm 52/36 7
- 165mm 53/39 6
- 167.5mm 1
- 167.5mm 48T 1
- 167.5mm 50T 1
- 16g 1
- 16mm 2
- 17 mm 1
- 170/172.5/175mm (Adjustable) 1
- 170mm 34
- 170mm 34T 1
- 170mm 36T 1
- 170mm 40T 1
- 170mm 44T 1
- 170mm 46/33 1
- 170mm 46T 1
- 170mm 48/35 1
- 170mm 48T 1
- 170mm 50/34 10
- 170mm 50/37 1
- 170mm 50T 1
- 170mm 52/36 12
- 170mm 53/39 10
- 172.5mm 28
- 172.5mm 40T 1
- 172.5mm 44T 1
- 172.5mm 46/33 1
- 172.5mm 46T 1
- 172.5mm 48/35 1
- 172.5mm 48T 1
- 172.5mm 50/34 10
- 172.5mm 50/37 1
- 172.5mm 50T 1
- 172.5mm 52/36 11
- 172.5mm 53/39 10
- 175mm 33
- 175mm 110BCD 1
- 175mm 32T 1
- 175mm 34T 1
- 175mm 36T 1
- 175mm 40T 1
- 175mm 46/33 1
- 175mm 46T 1
- 175mm 48/35 1
- 175mm 48T 1
- 175mm 50/34 10
- 175mm 50/37 1
- 175mm 50T 1
- 175mm 52/36 11
- 175mm 53/39 10
- 177.5mm 46/33 1
- 177.5mm 48T 1
- 177.5mm 50T 1
- 17mm 2
- 180mm 2
- 18mm 1
- 20mm 1
- 20x110mm 1
- 21mm 3
- 22mm 1
- 22oz 1
- 23-28mm 1
- 230mm 6
- 25g 1
- 25mm 2
- 260mm 1
- 26oz 1
- 26x1.70/2.30 1
- 27.5 2
- 27mm 1
- 28-35mm 1
- 28.6mm 1
- 28mm 1
- 29 1
- 29x1.70/2.30 1
- 3.5mm 1
- 300mm 4
- 30mm 3
- 31.8mm 1
- 31.8mm Handlebar Clamp 2
- 32mm 1
- 32mm Asymmetrical 1
- 34mm 1
- 35mm 9
- 37-50mm 1
- 38mm 2
- 40mm 3
- 42mm 8
- 44mm 3
- 45mm 6
- 46-33t 1
- 46mm 1
- 48 Teeth 1
- 48-35t 1
- 48mm 2
- 4Season-QR 1
- 4nm 1
- 50 Teeth 1
- 50-37t 1
- 50mm 1
- 52 Teeth 1
- 52cm 1
- 53mm 2
- 55mm 1
- 5nm 1
- 60mm 12
- 63mm 1
- 65mm 2
- 6mm 1
- 700 x 18-25mm 1
- 700 x 20-28mm 1
- 700 x 28-35mm 1
- 700 x 28-37mm 1
- 700 x 35-45mm 1
- 700x19/23mm 2
- 700x25/28mm 1
- 700x30/38mm 2
- 70cm 1
- 72mm 1
- 73mm 1
- 75mm 3
- 7mm 1
- 80mm 4
- 85cm 1
- 8mm 1
- 98mm 1
- 9mm 1
- A 1
- B 1
- Bag and Strap 1
- Bag, Strap and Mounting Plate 1
- C 1
- Campagnolo 1
- Crank Brothers 1
- D 1
- Galaxy Note 8 1
- Galaxy Note 9 1
- Galaxy S10 1
- Galaxy S10 Plus 1
- Galaxy S8 1
- Galaxy S8 Plus 1
- Galaxy S9 1
- Galaxy S9 Plus 1
- Garmin 3
- ISCG 05 Mount 1
- Keo 1
- Large 2
- Long 1
- M-XXL 3
- Medium 5
- One Size 950
- RaceSeason-12TA 1
- RaceSeason-QR 1
- RaceSeason-V2-12TA 1
- RaceSeason-V2-QR 1
- Regular 1
- SPD 1
- SPD SL 1
- Shimano 2
- Shimano/SRAM 4
- Short 1
- Small 4
- Speedplay 1
- Universal 1
- WM/L 4
- WXS/S 4
- Wahoo 3
- X-Large 2
- XS/S 5
- iPhone 6/7/8 2
- iPhone 6/7/8/ Plus 2
- iPhone X/XS 2
- iPhone XR 2
- iPhone XS Max 2
Colour
- Beige 27
- Biege 1
- Black 882
- Blue 234
- Blue Blue 1
- Brown 17
- Clear 15
- Coral 1
- Gold 26
- Green 151
- Grey 323
- Light Blue 2
- Multicolour 5
- Orange 80
- Pink 58
- Purple 38
- Purple/Black 140
- Red 63
- Red/Black 1
- Teal 1
- Turquoise 1
- White 153
- Yellow 73
Stock Availability
- Email Me When In Stock 458
- In Stock 2038
- Ordered On Demand 46
Wheel Size
- 26 3
- 650C 1
- 700C 14
Brand
- 2XU 1
- 4iiii 10
- 76 Projects 3
- 7mesh 1
- Abbey Bike Tools 37
- Abus 15
- Adidas 1
- Aftershokz 5
- Airinum 2
- Airshot 1
- Altura 23
- Amp Human 2
- Apidura 43
- Arundel 13
- Ass Savers 5
- Assos 10
- BBB 21
- BMC 1
- Bellroy 22
- Beryl 2
- Bike Box Alan 8
- Birzman 28
- Black Sheep Cycling 4
- Blackburn 22
- Body Glide 8
- Bontrager 97
- Brompton 18
- C-Bear 1
- CJ Skinhealth 6
- CYCL 1
- Cactus Tongue 14
- CamelBak 20
- Camille McMillan 1
- Campagnolo 2
- Cannondale 4
- CarbonWorks 2
- Castelli 11
- Cateye 22
- CeramicSpeed 1
- Challenge 2
- Chapeau 1
- Chris Sidwells 1
- Claire Beaumont 1
- Clug 4
- Colnago 7
- Compeed 3
- Continental 20
- Coros 5
- Crankalicious 9
- Cycliq 8
- DT Swiss 1
- Daniel Friebe & Pete Goding 1
- Delta 1
- Douchebags 28
- Dynaplug 12
- ENVE 12
- ESI 1
- EVOC 11
- Effetto Mariposa 2
- Elite 28
- Endura 1
- Enduro 7
- Enervit 1
- Ergon 1
- Exposure Lights 54
- F3 Cycling 5
- FINGERSCROSSED 5
- FSA 3
- Fabric 3
- Favero 4
- Feedback Sports 13
- Fidlock 8
- Finish Line 24
- Finn 1
- Fitletic 2
- Fix Manufacturing 1
- Fizik 7
- Flinger 2
- Focus 1
- Fox Racing 1
- Fumpa Pumps 2
- GT85 2
- GUP 1
- Garmin 75
- Genuine Innovations 11
- GoPro 8
- Granite Design 13
- Guy Andrews 1
- HUUB 4
- Hamax 1
- Herbie Sykes 1
- Herschel Supply Co. 12
- High5 4
- Hiplok 26
- Hitting The Wall 6
- Hunt 1
- Hutchinson 3
- Innotec 1
- Jack Thurston 1
- K-Edge 18
- KMC 1
- KT Tape 5
- Kinesis 4
- KitBrix 5
- Knight Composites 1
- Knog 51
- Kryptonite 25
- LOOK 4
- Lezyne 40
- Lightweight 3
- Litelok 4
- Lizard Skins 3
- Lonely Planet 2
- Louri 2
- M:Part 2
- MAAP 4
- MOST 2
- Maurten 2
- Mavic 5
- Michelin 2
- Miss Grape 14
- Moon 7
- Morgan Blue 20
- Muc-Off 80
- NAQI 2
- Notio 1
- Nutrak 3
- ODI 1
- ORTLIEB 51
- Oakley 21
- Orange Seal 1
- Orb 4
- Orca 3
- Osprey 57
- PEdALED 1
- PRO 40
- Paceline 5
- Park Tool 126
- Pas Normal Studios 1
- Patagonia 6
- Pearson 1860 1
- Peaty's 15
- Pedla 1
- Polar 14
- PowerDot 2
- Praxis Works 2
- Precotec 1
- Premax 5
- Profile Design 4
- Proper Cleaner by Guy Martin 1
- Quarq 23
- ROKA 4
- RRP 1
- RaceWare 2
- Repente 2
- Respro 9
- Restrap 30
- Richard Abraham 1
- RockShox 1
- Rokform 12
- Roswheel 30
- Rotor 5
- Roval 1
- Ruben Van Gucht 1
- SKS 18
- SP Connect 6
- SRM 7
- Salomon 24
- Saris 19
- Schwalbe 1
- SciCon 5
- Science in Sport 2
- SeaSucker 7
- Shimano 10
- Sigma Sports 7
- Silca 47
- Sinewave Cycles 1
- Skin Grows Back 7
- Skratch Labs 2
- Smoove 3
- Specialized 62
- Speedplay 2
- Squirt 6
- Stages Cycling 41
- Stan's NoTubes 14
- Steadyrack 4
- Stryd 1
- Supacaz 19
- Suunto 8
- Tacx 17
- Tex-lock 6
- The Bar Fly 1
- The Velominati 1
- Therabody 13
- Thule 22
- Timber! 1
- Token 1
- Topeak 53
- Tortec 5
- TreeFrog 12
- Trek 1
- Trelock 7
- Tru-Tension 11
- TrueStart 1
- Tubolito 7
- Tubus 3
- Tuff-Luv 6
- Tufo 2
- UYN 2
- Unior Tools 46
- Universal Colours 1
- Vadolibero 8
- Vel 32
- VeloHawk 3
- Veloskin 5
- Velosock 6
- Velox 1
- Vision 1
- Vittoria 6
- Vredestein 1
- Wahoo 43
- Wheels Manufacturing 4
- Wolf Tooth Components 22
- XLab 7
- Zipp 12
- Zone3 4
- Zoot 1
- Zwift 2
- absoluteBLACK 1
- milKit 7
- neatcleats 1
Categories
- Action Camera Accessories 14
- Action Cameras 7
- Allen Hex & Torx Wrenches 85
- Anti-Chafing Balm 10
- Artwork 6
- Backpacks & Bags 183
- Bar Plugs 8
- Bells 6
- Bike & Wheel Bags 25
- Bike Storage 63
- Bike Wash & Cleaners 33
- Body Wash 8
- Bolt 2
- Bottles 58
- Bottom Bracket Tools 37
- Brushes & Tools 12
- CO2 Cartridges 9
- CO2 Inflaters 20
- CO2 Pumps 1
- Cable Cutters & Pliers 14
- Cages 55
- Campagnolo Spares 1
- Car Racks 49
- Chain Catchers 7
- Chain Tools 27
- Chainring Bolts 3
- Chamois Cream 18
- Child Seats 1
- Cleaners & Degreasers 2
- Cleaning Kits 8
- Cleats 14
- Clothing Wash 2
- Cycling Heart Rate Monitors 1
- Degreasers 12
- Embrocation 15
- Frame Bags 62
- Frame Pumps 4
- Freewheel & Cassette Tools 25
- Front Lights 64
- GPS & Bike Computer Accessories 94
- GPS Bike Computers 22
- GPS Spares 2
- GPS Watch 35
- Gift Items 4
- Grips 7
- Hair Remover 2
- Handlebar Bags 35
- Handlebar Tape 49
- Headphones 5
- Hydration Packs 40
- Inner Tubes 63
- Light Sets 34
- Light Spares 62
- Locks 78
- Lubricants 53
- Massage 6
- Mini Pumps 43
- Miscellaneous 26
- Mudguards 33
- Multi Tools 36
- Multisport Heart Rate Monitors 10
- Panniers 28
- Patches 32
- Phone Accessories 27
- Polish 11
- Pollution Masks 20
- Power Meter - Crank Mounted 47
- Power Meter - Pedal Mounted 18
- Power Meter - Spider Mounted 28
- Power Spare 2
- Protective Cases & Wallets 14
- Protector 2
- Publications 14
- Pumps & Co2 2
- Racks 25
- Rear Lights 38
- Rim Tape 19
- Rollers 4
- Running Heart Rate Monitors 1
- Saddle Bags 103
- Screwdrivers 3
- Shock Pumps 2
- Spanners & Wrenches 30
- Storage Bottles 7
- Tool Sets 8
- Top Tube Bags 24
- Track Pumps 27
- Training Aids 21
- Transition Bags 15
- Tubular Glue & Tape 6
- Turbo Trainer Spares 20
- Turbo Trainers 39
- Tyre Levers 6
- Tyre Sealant 32
- Valve Extenders 25
- Wheel & Spoke Tools 14
- Wheel Spares 25
- Wipes 4
- Workstands 16
Gender
- Kids 1
- Mens 3
- Unisex 60
- Womens 27
Price Range
- Under £10 353
- £10 - £50 1181
- £50 - £100 387
- £100 - £200 261
- £200 - £300 72
- £300 - £400 49
- £400 - £500 42
- £500 - £1000 89
- £1000 - £2000 25
- £2000 - £5000 8
- £5000 - £8000 2
Average Review
- ★★★★★ ★★★★★ & Up 712
- ★★★★★ ★★★★★ & Up 797
- ★★★★★ ★★★★★ & Up 821
- ★★★★★ ★★★★★ & Up 838
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Castelli

Undersaddle Bag Mini

£27.00

MSP £30.00 Save 10%

★★★★★ ★★★★★

(28)