Scope of Application: 28.6mm 31.8mm bike stem is suitable for various bicycles such as mountain bikes and fixed gear bicycle. Reduce Hand Pressure: The 31.8mm mountain bike stem can provide a comfortable stem head design to reduce hand pressure.
eBay
Litepro Bicycle Seat Post 31.8mm 31.9mm 620mm For Brompton Folding Bike Aluminum Alloy Seatpost For Brompton Bike Parts
Aliexpress UK
I9.4a18B5mYB5mY4I" style="box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; height: 8931px; position: absolute; top: 0px; visibility: hidden; width: 1212px; z-index: -1;">.
eBay
SHIMANO SORA FD R3000 Front Derailleur Brazed On 31.8mm 34.9mm Clamp 2x9 Speed Road Bike Bicycle Accessories
Aliexpress UK
The XLC Pro Ride A-Head Stem ST-F05 is a compact, durable stem designed for mountain bikes or riders looking for a shorter, more responsive cockpit setup. Material: CNC Aluminium. Length: 40mm. Model: PRO Ride (ST-F05).
eBay
ZTTO Bicycle Front Derailleur Clamp Adapter 34.9mm 31.8mm Durable Aluminum Alloy Folding Road Bike Derailleur Braze-on Convertor
Aliexpress UK
±60 degrees angle handlebar riser not only changes the height but angle of the handlebar. Bike handlebar riser is used for adjust your bike's height and angle in order to suitable for your riding. For example: 31.8 adjustable handle 110mm long, the specific size: lock front fork hole 28.6mm, lock handle hole 31.8mm, length 110mm.
eBay
ZTTO Bicycle Parts Road Bike Brake Levers 22.2 31.8 Fixed Gear Deputy Vice Brake Parts 31.8mm Brake Handle 22.2mm 1 Pair
Aliexpress UK
ITM Forged Lite Carbon Stem.
eBay
1Pcs Bike Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bicycle Quick Release Seatpost for Mountain Tube Bike
Aliexpress UK
Fitted never used. 70mm length
eBay
ENLEE Bike Seat Post Clamp CNC Aluminum Alloy Cycling Saddle Seat Post Clamp For 31.8MM 34.9MM Bike Parts Seatpost Accessories
Aliexpress UK
Length: 60mm (centre to centre). Type: Ahead Stem. Weight: 112g. This does not affect the product's quality or performance. Model: ONE. Handlebar Compatibility: 31.8mm.
eBay
WAKE Mountain Bike Handlebar Aluminum Alloy Handlebar 720mm 780mm MTB Bicycle Handlebar Diameter 31.8mm Bicycle Accessories
Aliexpress UK
1 Piece Bike Stem. Easy to install and use, just connect up the original front fork stem. Four bolt (included)bar clamp holds bar securely in position. Because the unpaid dispute will not be closed automatically, and we may ignore it.
eBay
SILVEROCK Titanium Seatpost Tube 31.8mm X 535mm 600mm for Brompton 3sixty Trifold Folding Bike, Seatpost Seat Tube Ultra Light
Aliexpress UK