Mountain Bike Parts

Looking for mountain bike parts? Shop our full range, including frames, saddles, seat covers, forks and handlebar grips. Top brands on offer include Rockrider and in-house made Decathlon parts. Whatever you need, you’ll find it below.
215 items
DECATHLON Seat Post With Suspension 27.2mm Diameter And 29.8mm - 33mm Adaptor
DECATHLON Seat Post With Suspension 27.2mm Diameter And 29.8mm - 33mm Adaptor
Rate: 4.1 stars, 786 votes
£24.99
DECATHLON SD Memory Foam 60° Trekking/City Bike Saddle
DECATHLON SD Memory Foam 60° Trekking/City Bike Saddle
Rate: 4.6 stars, 41 votes
£24.99
DECATHLON 60° LD Mountain Bike Saddle
DECATHLON 60° LD Mountain Bike Saddle
Rate: 4.4 stars, 42 votes
£24.99
Was £34.99
DECATHLON Seat Post 27.2mm - 29.8mm to 33mm - Black
DECATHLON Seat Post 27.2mm - 29.8mm to 33mm - Black
Rate: 4.3 stars, 676 votes
£19.99
ROCKRIDER Clipless Flat Aluminium Mountain Bike Pedals 500 - Black
ROCKRIDER Clipless Flat Aluminium Mountain Bike Pedals 500 - Black
Rate: 4.1 stars, 1145 votes
£27.99
ROCKRIDER Shimano SPD Compatible Cleats - Black
ROCKRIDER Shimano SPD Compatible Cleats - Black
Rate: 4.4 stars, 1388 votes
£9.99
SHIMANO Mountain Bike Clipless Pedals M520 SPD - Black
SHIMANO Mountain Bike Clipless Pedals M520 SPD - Black
Rate: 4.7 stars, 1188 votes
£29.99£34.99
SHIMANO Clipless Trail Mountain Bike Pedals SPD PD-ME700 - Black
SHIMANO Clipless Trail Mountain Bike Pedals SPD PD-ME700 - Black
Rate: 4.6 stars, 127 votes
£39.99
DECATHLON 500 Memory Foam Saddle Cover Size M - Black
DECATHLON 500 Memory Foam Saddle Cover Size M - Black
Rate: 4.4 stars, 5717 votes
£8.99
Was £9.99
ROCKRIDER Clipless Mountain Bike Pedals 520 - Black
ROCKRIDER Clipless Mountain Bike Pedals 520 - Black
Rate: 3.9 stars, 999 votes
£24.99
SHIMANO Clipless Flat Aluminium MTB Pedals M324 SPD
SHIMANO Clipless Flat Aluminium MTB Pedals M324 SPD
Rate: 4.6 stars, 448 votes
£49.99
DECATHLON 60° MD MTB / Trekking / City Bike Saddle
DECATHLON 60° MD MTB / Trekking / City Bike Saddle
Rate: 4.5 stars, 51 votes
£19.99
BTWIN Unisex Hybrid Trekking MTB City Gel Bike Saddle
BTWIN Unisex Hybrid Trekking MTB City Gel Bike Saddle
Rate: 4.5 stars, 2392 votes
£27.99
SHIMANO Clipless Enduro Mountain Bike Pedals SPD Deore XT PD-M8120 - Black
SHIMANO Clipless Enduro Mountain Bike Pedals SPD Deore XT PD-M8120 - Black
Rate: 4.7 stars, 31 votes
£89.99
DECATHLON Oversize Bike Stem 35mm (31.8mm)
DECATHLON Oversize Bike Stem 35mm (31.8mm)
Rate: 4.7 stars, 404 votes
£14.99
DECATHLON Kids' 20/24" 60° Bike Saddle
DECATHLON Kids' 20/24" 60° Bike Saddle
Rate: 4.5 stars, 221 votes
£14.99
Was £17.99
DECATHLON 500 Saddle Cover MemoryFoam - Size L - Black
DECATHLON 500 Saddle Cover MemoryFoam - Size L - Black
Rate: 4.4 stars, 4095 votes
£8.99
Was £9.99
DECATHLON 23.4mm Diameter Seat Post 25mm to 27.2mm
DECATHLON 23.4mm Diameter Seat Post 25mm to 27.2mm
Rate: 4.2 stars, 427 votes
£19.99
DECATHLON 34.9 mm Seat Clamp
DECATHLON 34.9 mm Seat Clamp
Rate: 4.5 stars, 221 votes
£5.49
DECATHLON Ergonomic Handlebar Grips City 500
DECATHLON Ergonomic Handlebar Grips City 500
Rate: 4.5 stars, 750 votes
£9.99
DECATHLON Adjustable Aheadset Oversize Stem
DECATHLON Adjustable Aheadset Oversize Stem
Rate: 4.4 stars, 926 votes
£19.99
DECATHLON 31.8 mm Seat Clamp - Silver
DECATHLON 31.8 mm Seat Clamp - Silver
Rate: 4.5 stars, 272 votes
£6.99
SELLE ITALIA C2 Gel Flow Saddle - Black
SELLE ITALIA C2 Gel Flow Saddle - Black
Rate: 4.1 stars, 458 votes
£44.99
ROCKRIDER 900 Sport Comfort Bike Grips
ROCKRIDER 900 Sport Comfort Bike Grips
Rate: 4.3 stars, 561 votes
£9.99
DECATHLON Ergonomic Bar Ends - Black
DECATHLON Ergonomic Bar Ends - Black
Rate: 4.6 stars, 456 votes
£9.99
DECATHLON 80mm Oversize Stem
DECATHLON 80mm Oversize Stem
Rate: 4.5 stars, 150 votes
£14.99
DECATHLON Rear Derailleur Guard
DECATHLON Rear Derailleur Guard
Rate: 4.2 stars, 248 votes
£3.99
DECATHLON Headset Damper Stem
DECATHLON Headset Damper Stem
Rate: 4.3 stars, 219 votes
£9.99
BTWIN Kids' Bike Pedals 16" and 20"
BTWIN Kids' Bike Pedals 16" and 20"
Rate: 4.6 stars, 127 votes
£7.99
DECATHLON Unisex Road/Mountain Bike Saddle Light 145mm
DECATHLON Unisex Road/Mountain Bike Saddle Light 145mm
£39.99
DECATHLON Children's Bike Saddle Cover
DECATHLON Children's Bike Saddle Cover
Rate: 4.4 stars, 833 votes
£8.99
ROCKRIDER 100 Short Sport Grips
ROCKRIDER 100 Short Sport Grips
Rate: 4.4 stars, 991 votes
£4.49
DECATHLON 60mm Oversize Stem
DECATHLON 60mm Oversize Stem
Rate: 4.6 stars, 290 votes
£14.99
DECATHLON 28.6 mm Seat Clamp
DECATHLON 28.6 mm Seat Clamp
Rate: 4.5 stars, 186 votes
£4.99
Was £7.49
DECATHLON 50 mm Quick Release Seat Post Clamp
DECATHLON 50 mm Quick Release Seat Post Clamp
Rate: 4.3 stars, 93 votes
£4.99
Was £7.49
DECATHLON 25.4mm Leisure Handlebars
DECATHLON 25.4mm Leisure Handlebars
Rate: 4.5 stars, 236 votes
£9.99
BTWIN 520 BMX Grip Pedals 1/2"
BTWIN 520 BMX Grip Pedals 1/2"
Rate: 3.8 stars, 76 votes
£9.99
DECATHLON Aluminium Steering Spacers
DECATHLON Aluminium Steering Spacers
Rate: 4.7 stars, 514 votes
£4.99
DECATHLON Waterresist XL Bike Saddle Cover - Black
DECATHLON Waterresist XL Bike Saddle Cover - Black
Rate: 3.7 stars, 190 votes
£5.99
DECATHLON Handlebar Ends
DECATHLON Handlebar Ends
Rate: 4.4 stars, 443 votes
£2.29
4.4/5 based on 43071 reviews collected online and in stores

MOUNTAIN BIKE PARTS, UK

Decathlon has a full range of mountain bike parts, so you can replace worn out pedals, upgrade to a more comfortable saddle or customise your handlebars with ease. Whatever parts you need for your MTB, you’ll find them here.

When it comes to mountain bike parts, be sure to always check the compatibility with your bike. Because we stock many leading brands, from Shimano and Btwin to Rockrider, you’ll likely find a like-for-like replacement every time. But, always check the diameters and sizing to make sure you’ve got the right one. If you do happen to order the wrong part from our online store it’s not a problem – you can send it back with free returns.

While you’re browsing, why not head to our mountain bikespage? Other sections worth checking out include ourmountain bike maintenance equipmentin case of issues with your bike, ourmountain bike cassettesfor various speeds and ourmountain bike chainrings.