Bike Single-disc Chain Guide Protector Mountain Bicycle Aluminum Alloy Chain Tensioner MTB Accessories

Boys cross cycle kept jumping the chain and I fitted this and the chain has t jumped since.

Usually when buying a product to fit to the seat tube a number of plastic sleeves will be included for the various diameters. None were included which is not great. I padded the gap by wrapping a strip of old inner tube around but at some point I’d like to change this to something more rigid. Before I bought it I was concerned the distance between my chainring and the seat tube might be too big as although I only use a single ring the bottom bracket axle could accommodate a triple. As it is there is plenty of adjustment available. I am using it on an old fashioned 531 racing frame which I use to get around town on. I was fed up with the chain coming off when changing to top or bottom gear or after jumping over a kerb. Time will tell but I have tried to get the chain to derail by pushing it sideways when on the bike stand but it seems ok. There were no instructions for how to place it in relation to the chainring so that’s going to be down to common sense or trial and error. There was a spare countersunk bolt with washers and a nut and a countersunk hole on the bracket. I don’t have the faintest idea what these are for as I don’t seem to need them.

EASY TO FIT AND NO MORE CHAIN DROPS AFTER FITTING AND I USE MY BIKE NEARLY EVERY DAY value for money would recommend

Does its job well , easy to fit

Good fit does what its designed for

Very easy to fit and works well

Erfüllt den zweck wofür ich sie gekauft habe. Die Kette kann auf dem kleinsten Gang im Gelände nicht mehr vom Kettenblatt springen. Bin gespannt wie schnell das Teil verschleißt.

Perfecto, fácil de instalar, ajuste muy preciso. Lo he puesto en una bici de tres ruedas, que cada pocos metros se salía la cadena, no se ha vuelto a salir

W moim rowerze Rockrider ST530 co jakiś czas spadał łańcuch przy zmianie biegów. Po założeniu prowadnicy łańcuch przestał spadać. Produkt łatwy w montażu i dobrze się trzyma.

facile à placer fonctionne bien

Dopo averlo montato mi sembra che consenta ampie possibilità di regolazione.Anche il materiale sembra robusto e quindi penso si un'ottima soluzione per evitare il deragliamento della catena. Ottimo lo consiglio.