Right Tyre for B'Twin Riverside 500m size 28"
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Bike wheels are relatively standardised, and 28" is what decathlon are calling what everyone else refers to as a 700c wheel, which has an outer dimension of 622mm (blame the French here, they historically measured a wheel size as the outer diameter of the tyre and wheel when fitted).
The numbers on the tyre 38-622 are the important dimensions of the tyre, a 622mm inner diameter and 38mm width when inflated, if you add 2x38 and the 622 together you get close to 700mm, which is close to the original specification, however people kept the wheel diameter the same but started using narrower and narrower tyres yet still called them 700c, it's a total shitshow and unnecessarily confusing.
Modern road and hybrid bikes pretty much all the same wheel size - ETRTO 622mm diameter and within reason you can fit any 622mm or 700c tyre to that rim, the only exception being you shouldn't fit a tyre which has a diameter narrower than the width of the rim itself, so you wouldn't fit a 19mm tyre to a 21mm wide wheel as the tyre wouldn't sit properly and could come off when riding.
In your case, if you get any other 700c tyre in 38mm width you should have no problems at all. If you don't want mismatched tyres then tyres between 32mm and 38mm should work fine,. you might be able to fit a wider tyre, but that will depend on how much space is between the current tyres and the frame of your bike, you'd have to check.
The numbers on the tyre 38-622 are the important dimensions of the tyre, a 622mm inner diameter and 38mm width when inflated, if you add 2x38 and the 622 together you get close to 700mm, which is close to the original specification, however people kept the wheel diameter the same but started using narrower and narrower tyres yet still called them 700c, it's a total shitshow and unnecessarily confusing.
Modern road and hybrid bikes pretty much all the same wheel size - ETRTO 622mm diameter and within reason you can fit any 622mm or 700c tyre to that rim, the only exception being you shouldn't fit a tyre which has a diameter narrower than the width of the rim itself, so you wouldn't fit a 19mm tyre to a 21mm wide wheel as the tyre wouldn't sit properly and could come off when riding.
In your case, if you get any other 700c tyre in 38mm width you should have no problems at all. If you don't want mismatched tyres then tyres between 32mm and 38mm should work fine,. you might be able to fit a wider tyre, but that will depend on how much space is between the current tyres and the frame of your bike, you'd have to check.
Any bike shop should be able to sell you one
vickster
Legendary Member
The Riverside 500 is equipped with B'Twin Trekking hybrid road and trail tyres so you can go anywhere.
The recommended pressure is a minimum of 2 bar and a maximum of 4 bar (details on tyre sidewall).
Dimensions: 700 x 38 (38-622).
All sold out at Decathlon, something like this would do the trick well in 700x38
https://www.spacycles.co.uk/m14b0s142p3001/SCHWALBE-Marathon-Greenguard-HS420
of course you’ll need a new tube.
The recommended pressure is a minimum of 2 bar and a maximum of 4 bar (details on tyre sidewall).
Dimensions: 700 x 38 (38-622).
All sold out at Decathlon, something like this would do the trick well in 700x38
https://www.spacycles.co.uk/m14b0s142p3001/SCHWALBE-Marathon-Greenguard-HS420
of course you’ll need a new tube.
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