Chain Guide as tensioner...?

[Mr Crudley]

what to do?...educate me please

There is no shame in spending more than your trusty steed is worth on a chain tensioner. It is the right thing to do even though it sure doesn't seem like it :shock:

The ETR-B is the answer since it provides more chain wrap - less chance of chain skipping when you are cranking up a hill out of the saddle.
It is tucked away and gives you a nice clean rear dropout without faux derailleur looking things hanging out.



I think they are worth the spendage ... an easy choice.
It must be silently working on world peace now since it has run out of drivetrain problems to fix on my bike ...

 

[BobCatMax]

V nice!

Any chance of some more pics?

 

[Mr Crudley]

V nice!
Any chance of some more pics?

Certainly, here is an obscure bottom bracket view. It fits over the BB cup and hasn't budged.



Here it is cleverly hidden by green trees.



The only things I think to consider about ETR-B is if you don't have a lot of tyre clearance near the BB/chainstay junction.
My frame won't fit biggish tyres, so no problem for me. Living with puffier 2.4" on the rear might be different story.

You can get a longer axle on the ETR-B to give more adjustment of the jockey wheel outwards.
When in doubt, move things outboard and move the ETR-B arm upwards away from the tyre
It is bit little noisy but no more than a rear mech IMHO. Overall, I'm pretty happy with it. It is a neat solution.

 

[lumos2000]

superstar do a nice heavy duty chain tensioners for half the price you mentioned. ive not tried one yet though.