Boutique de vélos en ligne
Faites de 2022 votre Année Vélo | À grands coups de pédale enthousiastes!
RETOUR GRATUIT SOUS 30 JOURS
Livraison gratuite à partir de 69 €6
Des questions ? Cliquez ici !
VALVES TUBELESS
Les valves tubeless permettent de rendre votre pneu entièrement étanche. Un embout en caoutchouc assure l’étanchéité de l’intérieur. Le lait de scellement peut se mettre via la valve : il vous suffit simplement de la dévisser. Prenez soin de prendre une longueur de valve qui convienne à votre jante !

Valves Tubeless

135 Articles
Filtre
Réinitialiser

Marques

Prix

€
jusqu’à
€

Recommandations

  • 6
  • 2
  • 7
  • 28
135 Afficher les produits
Trier
Meilleures ventes Nouveautés Recommandations des clients Prix décroissants Prix croissants Meilleures réductions
Filtre
Trier
Meilleures ventes Nouveautés Recommandations des clients Prix décroissants Prix croissants Meilleures réductions
DT Swiss MTB Tubeless Kit 32mm
DT Swiss MTB Tubeless Kit 32mm
DT Swiss
MTB Tubeless Kit 32mm
8,90 €
(6) Avis
DT Swiss Road Valve Tubeless 32mm
DT Swiss Road Valve Tubeless 32mm
DT Swiss
Road Valve Tubeless 32mm
8,90 €
Muc-Off MTB & Road Kit de valves Tubeless 60mm vert
Muc-Off MTB & Road Kit de valves Tubeless 60mm violet
Muc-Off MTB & Road Kit de valves Tubeless 60mm orange
Muc-Off MTB & Road Kit de valves Tubeless 60mm rose
Muc-Off MTB & Road Kit de valves Tubeless 60mm rouge
Muc-Off MTB & Road Kit de valves Tubeless 60mm argent
Muc-Off MTB & Road Kit de valves Tubeless 60mm, rouge
Muc-Off MTB & Road Kit de valves Tubeless 60mm, rouge rouge
Muc-Off
MTB & Road Kit de valves Tubeless 60mm, rouge
27,49 € 24,99 €
(4) Avis
Muc-Off MTB & Road Kit de valves Tubeless 44mm vert
Muc-Off MTB & Road Kit de valves Tubeless 44mm rose
Muc-Off MTB & Road Kit de valves Tubeless 44mm, vert
Muc-Off MTB & Road Kit de valves Tubeless 44mm, vert vert
Muc-Off
MTB & Road Kit de valves Tubeless 44mm, vert
27,49 € 24,99 €
(6) Avis
Muc-Off MTB & Road Kit de valves Tubeless 60mm vert
Muc-Off MTB & Road Kit de valves Tubeless 60mm violet
Muc-Off MTB & Road Kit de valves Tubeless 60mm orange
Muc-Off MTB & Road Kit de valves Tubeless 60mm rose
Muc-Off MTB & Road Kit de valves Tubeless 60mm rouge
Muc-Off MTB & Road Kit de valves Tubeless 60mm argent
Muc-Off MTB & Road Kit de valves Tubeless 60mm, orange
Muc-Off MTB & Road Kit de valves Tubeless 60mm, orange orange
Muc-Off
MTB & Road Kit de valves Tubeless 60mm, orange
27,49 € 22,99 €
- 16 %
(4) Avis
DT Swiss Tubeless Valve 18-25mm pour jantes asymétriques, noir
DT Swiss Tubeless Valve 18-25mm pour jantes asymétriques, noir noir
DT Swiss
Tubeless Valve 18-25mm pour jantes asymétriques, noir
8,90 €
DT Swiss Tubeless Valve pour jantes 36-48mm, noir
DT Swiss Tubeless Valve pour jantes 36-48mm, noir noir
DT Swiss
Tubeless Valve pour jantes 36-48mm, noir
8,90 €
Peaty's X Chris King MK2 Tubeless Valves 42mm bleu
Peaty's X Chris King MK2 Tubeless Valves 42mm marron
Peaty's X Chris King MK2 Tubeless Valves 42mm gris
Peaty's X Chris King MK2 Tubeless Valves 42mm vert
Peaty's X Chris King MK2 Tubeless Valves 42mm violet
Peaty's X Chris King MK2 Tubeless Valves 42mm orange
Peaty's X Chris King MK2 Tubeless Valves 42mm rose
Peaty's X Chris King MK2 Tubeless Valves 42mm rouge
Peaty's X Chris King MK2 Tubeless Valves 42mm noir
Peaty's X Chris King MK2 Tubeless Valves 42mm argent
Peaty's X Chris King MK2 Tubeless Valves 42mm turquoise
Peaty's X Chris King MK2 Tubeless Valves 42mm, noir
Peaty's X Chris King MK2 Tubeless Valves 42mm, noir noir
Peaty's
X Chris King MK2 Tubeless Valves 42mm, noir
30,99 € 27,99 €
(2) Avis
WTB Valve Tubeless Presta laiton 2 Pièces 34 mm, noir/Or
WTB Valve Tubeless Presta laiton 2 Pièces 34 mm, noir/Or noir/Or
WTB
Valve Tubeless Presta laiton 2 Pièces 34 mm, noir/Or
15,95 €
(1) Avis
WTB Valve Tubeless Presta laiton 2 Pièces 46mm, Or/noir
WTB Valve Tubeless Presta laiton 2 Pièces 46mm, Or/noir Or/noir
WTB
Valve Tubeless Presta laiton 2 Pièces 46mm, Or/noir
15,95 € 13,99 €
- 12 %
(1) Avis
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm bleu
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm vert
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm orange
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm rouge
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm noir
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm, rouge
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm, rouge rouge
WTB
Valve Tubeless Presta Aluminium 2 Pièces 46mm, rouge
25,95 € 20,99 €
- 19 %
(1) Avis
DT Swiss Tubeless Valve pour jantes 18-25mm, noir
DT Swiss Tubeless Valve pour jantes 18-25mm, noir noir
DT Swiss
Tubeless Valve pour jantes 18-25mm, noir
8,90 €
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 44mm bleu
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 44mm vert
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 44mm rouge
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 44mm, rouge
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 44mm, rouge rouge
Stan's NoTubes
Universal Valve Tubeless Presta Aluminium 44mm, rouge
22,95 € 18,99 €
- 17 %
(1) Avis
Lezyne CNC Valve Tubeless 44mm bleu
Lezyne CNC Valve Tubeless 44mm Or
Lezyne CNC Valve Tubeless 44mm rouge
Lezyne CNC Valve Tubeless 44mm noir
Lezyne CNC Valve Tubeless 44mm, noir
Lezyne CNC Valve Tubeless 44mm, noir noir
Lezyne
CNC Valve Tubeless 44mm, noir
21,95 €
(1) Avis
CushCore Kit Valves 44mm vert
CushCore Kit Valves 44mm orange
CushCore Kit Valves 44mm rouge
CushCore Kit Valves 44mm noir
CushCore Kit Valves 44mm turquoise
CushCore Kit Valves 44mm, noir
CushCore Kit Valves 44mm, noir noir
CushCore
Kit Valves 44mm, noir
26,95 €
DT Swiss Tubeless Valve 18-25mm, noir
DT Swiss Tubeless Valve 18-25mm, noir noir
DT Swiss
Tubeless Valve 18-25mm, noir
8,90 €
Lezyne CNC Valve Tubeless 80mm bleu
Lezyne CNC Valve Tubeless 80mm Or
Lezyne CNC Valve Tubeless 80mm rouge
Lezyne CNC Valve Tubeless 80mm, rouge
Lezyne CNC Valve Tubeless 80mm, rouge rouge
Lezyne
CNC Valve Tubeless 80mm, rouge
21,95 €
milKit Valve tubeless Kit de valves 2 pcs 75mm
milKit Valve tubeless Kit de valves 2 pcs 75mm
milKit
Valve tubeless Kit de valves 2 pcs 75mm
33,95 € 27,99 €
- 18 %
Lezyne CNC Valve Tubeless 44mm bleu
Lezyne CNC Valve Tubeless 44mm Or
Lezyne CNC Valve Tubeless 44mm rouge
Lezyne CNC Valve Tubeless 44mm noir
Lezyne CNC Valve Tubeless 44mm, rouge
Lezyne CNC Valve Tubeless 44mm, rouge rouge
Lezyne
CNC Valve Tubeless 44mm, rouge
21,95 € 19,99 €
(1) Avis
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm bleu
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm vert
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm orange
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm rouge
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm noir
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm, bleu
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm, bleu bleu
Stan's NoTubes
Universal Valve Tubeless Presta Aluminium 35 mm, bleu
22,95 €
milKit Tubeless Outil pour valve 55mm
milKit Tubeless Outil pour valve 55mm
milKit
Tubeless Outil pour valve 55mm
4,95 €
CushCore Kit Valves 44mm vert
CushCore Kit Valves 44mm orange
CushCore Kit Valves 44mm rouge
CushCore Kit Valves 44mm noir
CushCore Kit Valves 44mm turquoise
CushCore Kit Valves 44mm, orange
CushCore Kit Valves 44mm, orange orange
CushCore
Kit Valves 44mm, orange
26,95 €
DT Swiss Road Valve Tubeless 87mm
DT Swiss Road Valve Tubeless 87mm
DT Swiss
Road Valve Tubeless 87mm
8,90 €
Orange Seal Versavalve Tubeless Valve 80mm 1 Pair
Orange Seal Versavalve Tubeless Valve 80mm 1 Pair
Orange Seal
Versavalve Tubeless Valve 80mm 1 Pair
29,99 € 25,99 €
- 13 %
Orange Seal Versavalve Valve Tubeless 32mm 1 Pair
Orange Seal Versavalve Valve Tubeless 32mm 1 Pair
Orange Seal
Versavalve Valve Tubeless 32mm 1 Pair
28,99 € 23,99 €
- 17 %
Peaty's X Chris King MK2 Tubeless Valves 42mm bleu
Peaty's X Chris King MK2 Tubeless Valves 42mm marron
Peaty's X Chris King MK2 Tubeless Valves 42mm gris
Peaty's X Chris King MK2 Tubeless Valves 42mm vert
Peaty's X Chris King MK2 Tubeless Valves 42mm violet
Peaty's X Chris King MK2 Tubeless Valves 42mm orange
Peaty's X Chris King MK2 Tubeless Valves 42mm rose
Peaty's X Chris King MK2 Tubeless Valves 42mm rouge
Peaty's X Chris King MK2 Tubeless Valves 42mm noir
Peaty's X Chris King MK2 Tubeless Valves 42mm argent
Peaty's X Chris King MK2 Tubeless Valves 42mm turquoise
Peaty's X Chris King MK2 Tubeless Valves 42mm, orange
Peaty's X Chris King MK2 Tubeless Valves 42mm, orange orange
Peaty's
X Chris King MK2 Tubeless Valves 42mm, orange
30,99 € 22,99 €
- 26 %
(2) Avis
CushCore Kit Valves 44mm vert
CushCore Kit Valves 44mm orange
CushCore Kit Valves 44mm rouge
CushCore Kit Valves 44mm noir
CushCore Kit Valves 44mm turquoise
CushCore Kit Valves 44mm, rouge
CushCore Kit Valves 44mm, rouge rouge
CushCore
Kit Valves 44mm, rouge
26,95 €
Peaty's X Chris King MK2 Tubeless Valves 42mm bleu
Peaty's X Chris King MK2 Tubeless Valves 42mm marron
Peaty's X Chris King MK2 Tubeless Valves 42mm gris
Peaty's X Chris King MK2 Tubeless Valves 42mm vert
Peaty's X Chris King MK2 Tubeless Valves 42mm violet
Peaty's X Chris King MK2 Tubeless Valves 42mm orange
Peaty's X Chris King MK2 Tubeless Valves 42mm rose
Peaty's X Chris King MK2 Tubeless Valves 42mm rouge
Peaty's X Chris King MK2 Tubeless Valves 42mm noir
Peaty's X Chris King MK2 Tubeless Valves 42mm argent
Peaty's X Chris King MK2 Tubeless Valves 42mm turquoise
Peaty's X Chris King MK2 Tubeless Valves 42mm, vert
Peaty's X Chris King MK2 Tubeless Valves 42mm, vert vert
Peaty's
X Chris King MK2 Tubeless Valves 42mm, vert
30,99 €
(2) Avis
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 55mm rouge
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 55mm noir
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 55mm, noir
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 55mm, noir noir
Stan's NoTubes
Universal Valve Tubeless Presta Aluminium 55mm, noir
22,95 €
(1) Avis
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm bleu
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm vert
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm orange
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm rouge
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm noir
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm, noir
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm, noir noir
WTB
Valve Tubeless Presta Aluminium 2 Pièces 46mm, noir
25,95 € 20,99 €
- 19 %
(1) Avis
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm bleu
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm vert
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm orange
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm rouge
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm noir
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm, noir
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm, noir noir
Stan's NoTubes
Universal Valve Tubeless Presta Aluminium 35 mm, noir
22,95 €
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm bleu
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm vert
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm orange
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm rouge
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm noir
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm, rouge
Stan's NoTubes Universal Valve Tubeless Presta Aluminium 35 mm, rouge rouge
Stan's NoTubes
Universal Valve Tubeless Presta Aluminium 35 mm, rouge
22,95 €
Stan's NoTubes Universal Valve Tubeless 35 mm MTB
Stan's NoTubes Universal Valve Tubeless 35 mm MTB
Stan's NoTubes
Universal Valve Tubeless 35 mm MTB
17,95 € 15,99 €
- 11 %
(3) Avis
BBB Tubeless BTI-159 Valve, noir/Or
BBB Tubeless BTI-159 Valve, noir/Or noir/Or
BBB
Tubeless BTI-159 Valve, noir/Or
16,95 €
(1) Avis
Lezyne CNC Valve Tubeless 60mm bleu
Lezyne CNC Valve Tubeless 60mm Or
Lezyne CNC Valve Tubeless 60mm rouge
Lezyne CNC Valve Tubeless 60mm noir
Lezyne CNC Valve Tubeless 60mm, noir
Lezyne CNC Valve Tubeless 60mm, noir noir
Lezyne
CNC Valve Tubeless 60mm, noir
21,95 €
Peaty's X Chris King MK2 Tubeless Valves 60mm beige
Peaty's X Chris King MK2 Tubeless Valves 60mm bleu
Peaty's X Chris King MK2 Tubeless Valves 60mm gris
Peaty's X Chris King MK2 Tubeless Valves 60mm vert
Peaty's X Chris King MK2 Tubeless Valves 60mm violet
Peaty's X Chris King MK2 Tubeless Valves 60mm orange
Peaty's X Chris King MK2 Tubeless Valves 60mm rouge
Peaty's X Chris King MK2 Tubeless Valves 60mm noir
Peaty's X Chris King MK2 Tubeless Valves 60mm argent
Peaty's X Chris King MK2 Tubeless Valves 60mm turquoise
Peaty's X Chris King MK2 Tubeless Valves 60mm, noir
Peaty's X Chris King MK2 Tubeless Valves 60mm, noir noir
Peaty's
X Chris King MK2 Tubeless Valves 60mm, noir
30,99 €
DT Swiss Tubeless Valve pour jantes 66-80mm, noir
DT Swiss Tubeless Valve pour jantes 66-80mm, noir noir
DT Swiss
Tubeless Valve pour jantes 66-80mm, noir
8,90 €
(1) Avis
Peaty's X Chris King MK2 Tubeless Valves 42mm bleu
Peaty's X Chris King MK2 Tubeless Valves 42mm marron
Peaty's X Chris King MK2 Tubeless Valves 42mm gris
Peaty's X Chris King MK2 Tubeless Valves 42mm vert
Peaty's X Chris King MK2 Tubeless Valves 42mm violet
Peaty's X Chris King MK2 Tubeless Valves 42mm orange
Peaty's X Chris King MK2 Tubeless Valves 42mm rose
Peaty's X Chris King MK2 Tubeless Valves 42mm rouge
Peaty's X Chris King MK2 Tubeless Valves 42mm noir
Peaty's X Chris King MK2 Tubeless Valves 42mm argent
Peaty's X Chris King MK2 Tubeless Valves 42mm turquoise
Peaty's X Chris King MK2 Tubeless Valves 42mm, bleu
Peaty's X Chris King MK2 Tubeless Valves 42mm, bleu bleu
Peaty's
X Chris King MK2 Tubeless Valves 42mm, bleu
30,99 €
(2) Avis
Peaty's X Chris King MK2 Tubeless Valves 42mm bleu
Peaty's X Chris King MK2 Tubeless Valves 42mm marron
Peaty's X Chris King MK2 Tubeless Valves 42mm gris
Peaty's X Chris King MK2 Tubeless Valves 42mm vert
Peaty's X Chris King MK2 Tubeless Valves 42mm violet
Peaty's X Chris King MK2 Tubeless Valves 42mm orange
Peaty's X Chris King MK2 Tubeless Valves 42mm rose
Peaty's X Chris King MK2 Tubeless Valves 42mm rouge
Peaty's X Chris King MK2 Tubeless Valves 42mm noir
Peaty's X Chris King MK2 Tubeless Valves 42mm argent
Peaty's X Chris King MK2 Tubeless Valves 42mm turquoise
Peaty's X Chris King MK2 Tubeless Valves 42mm, rouge
Peaty's X Chris King MK2 Tubeless Valves 42mm, rouge rouge
Peaty's
X Chris King MK2 Tubeless Valves 42mm, rouge
30,99 € 27,99 €
(2) Avis
milKit Tubeless Outil pour valve 35mm
milKit Tubeless Outil pour valve 35mm
milKit
Tubeless Outil pour valve 35mm
4,95 €
WTB Valve Tubeless Presta Aluminium 2 Pièces 34 mm bleu/noir
WTB Valve Tubeless Presta Aluminium 2 Pièces 34 mm noir
WTB Valve Tubeless Presta Aluminium 2 Pièces 34 mm noir
WTB Valve Tubeless Presta Aluminium 2 Pièces 34 mm, noir
WTB Valve Tubeless Presta Aluminium 2 Pièces 34 mm, noir noir
WTB
Valve Tubeless Presta Aluminium 2 Pièces 34 mm, noir
24,95 €
DT Swiss Tubeless Valve pour jantes 49-65mm, noir
DT Swiss Tubeless Valve pour jantes 49-65mm, noir noir
DT Swiss
Tubeless Valve pour jantes 49-65mm, noir
8,90 €
(1) Avis
Lezyne CNC Valve Tubeless 44mm bleu
Lezyne CNC Valve Tubeless 44mm Or
Lezyne CNC Valve Tubeless 44mm rouge
Lezyne CNC Valve Tubeless 44mm noir
Lezyne CNC Valve Tubeless 44mm, bleu
Lezyne CNC Valve Tubeless 44mm, bleu bleu
Lezyne
CNC Valve Tubeless 44mm, bleu
21,95 €
(1) Avis
Peaty's X Chris King MK2 Tubeless Valves 42mm bleu
Peaty's X Chris King MK2 Tubeless Valves 42mm marron
Peaty's X Chris King MK2 Tubeless Valves 42mm gris
Peaty's X Chris King MK2 Tubeless Valves 42mm vert
Peaty's X Chris King MK2 Tubeless Valves 42mm violet
Peaty's X Chris King MK2 Tubeless Valves 42mm orange
Peaty's X Chris King MK2 Tubeless Valves 42mm rose
Peaty's X Chris King MK2 Tubeless Valves 42mm rouge
Peaty's X Chris King MK2 Tubeless Valves 42mm noir
Peaty's X Chris King MK2 Tubeless Valves 42mm argent
Peaty's X Chris King MK2 Tubeless Valves 42mm turquoise
Peaty's X Chris King MK2 Tubeless Valves 42mm, rose
Peaty's X Chris King MK2 Tubeless Valves 42mm, rose rose
Peaty's
X Chris King MK2 Tubeless Valves 42mm, rose
30,99 €
(2) Avis
DT Swiss Tubeless Valve pour jantes 26-35mm, noir
DT Swiss Tubeless Valve pour jantes 26-35mm, noir noir
DT Swiss
Tubeless Valve pour jantes 26-35mm, noir
8,90 €
Granite Juicy Nipple Valves incl. Caps 2 Pieces vert
Granite Juicy Nipple Valves incl. Caps 2 Pieces Or
Granite Juicy Nipple Valves incl. Caps 2 Pieces orange
Granite Juicy Nipple Valves incl. Caps 2 Pieces rose
Granite Juicy Nipple Valves incl. Caps 2 Pieces rouge
Granite Juicy Nipple Valves incl. Caps 2 Pieces, vert
Granite Juicy Nipple Valves incl. Caps 2 Pieces, vert vert
Granite
Juicy Nipple Valves incl. Caps 2 Pieces, vert
24,99 €
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm bleu
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm vert
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm orange
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm rouge
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm noir
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm, bleu
WTB Valve Tubeless Presta Aluminium 2 Pièces 46mm, bleu bleu
WTB
Valve Tubeless Presta Aluminium 2 Pièces 46mm, bleu
25,95 € 20,99 €
- 19 %
(1) Avis
CushCore Kit Valves 55mm vert
CushCore Kit Valves 55mm orange
CushCore Kit Valves 55mm rouge
CushCore Kit Valves 55mm noir
CushCore Kit Valves 55mm, rouge
CushCore Kit Valves 55mm, rouge rouge
CushCore
Kit Valves 55mm, rouge
26,95 €
Fermer
Enregistrer