well my bike guy had a look at the pic and said that bolt spacing size is from like 20 years ago thus why the caliper wont fit with a adaptor mount as the holes will be to far apart for the caliper you have.

 

he said do you have any spacers that came with the motor that you could use to push the frame apart a bit more and get enough clearance that way.

 

only other option is get another caliper that will fit the tektro adaptor mount for a 160mm rotor.

 

note only the tektro adaptor will work as nothing else has the same bolt spacing to attach it to the frame.

 

https://www.giant-bicycles.com/ie/escape-3-disc

 

I think I got it. Thank you very much, but isn't it really strange that this bike is designed like this.. I will try to follow a new path by showing this message to a bike mechanic.

Your English is fine my friend, I think it's me speaking the wrong language, I'll get my coat .

My English is very bad my friend. I am writing with the help of google translate. Also, I'm in Ireland right now. I couldn't find a reliable bike mechanic here and I'm confused. I spent as much money as I could. (I just wanted to have a new kit and bike) this is really hard..

it is just one of those things that happens when converting bikes or changing rotor size as if you see the one i have on my bike it is made for the caliper that i have so nothing else would work think i paid 30 quid for the one i have and had to get it from Germany at the time pita!

 

and i got some of these for my xx1 sram rear mech top one was fine but bottom one was solid with the bolts done up.

 

https://www.uberbikecomponents.com/view-product/Uberbike-12-14T-SRAM-Eagle-12-Speed-Jockey-Wheels-Made-In-Sheffield-UK

 

so it was Dremel to the rescue and grind down the rear metal plate to get clearance for it lol.

 

i did have the gx version with nylon jockey wheels but one of them exploded snapped the chain and that was that and walking home.

 

https://www.mtbr.com/threads/sram-xx1-eagle-broken-pulley-wheel-is-it-happened-to-anybody-else.1080355/

There are two standard disc brake mounting points on bicycles. They are IS (side mount) and PM (post mount). Yours is PM. All PM adapters will have the correct spacing. If you want to check, PM mounting holes are 74mm apart.

 

I don't know why these guys want to confuse you, when I already showed you the correct part that you need.

There are two standard disc brake mounting points on bicycles. They are IS (side mount) and PM (post mount). Yours is PM. All PM adapters will have the correct spacing. If you want to check, PM mounting holes are 74mm apart.

 

I don't know why these guys want to confuse you, when I already showed you the correct part that you need.

 

 

that is not 74mm apart and why he has a problem and why standard adaptors wont work because of the bolt hole spacing to attach it to the frame is not standard anymore.

 

only the tektro ones will work with that frame bolt spacing and max size is 160mm.

If we're talking about this distance, I wanted to measure it for you. I don't fully understand yet..

4cm is 40mm that caliper will not fit any modern adaptor frame mount is mount or anything else bar what i posted.

4cm is 40mm that caliper will not fit any modern adaptor frame mount is mount or anything else bar what i posted.

It's really a pity that we can't find an adapter for it. I was confused what to do.

Well spotted Soundwave. I couldn't get a sense of scale from the photos.

It's really a pity that we can't find an adapter for it. I was confused what to do.

 

 

this will work just not with the caliper you have becose of the bolt spacing.

 

https://www.ebay.co.uk/itm/163298936563?epid=18022944780&hash=item26056006f3:g:G5QAAOSwftZbfW1x

 

problem is i can not find it for sale cheap in any bike shop in stock and only on ebay at near £30 and is the only way to fix this problem.

 

cable caliper also seem to be a lot wider than hydraulic ones but again modern ones wont match the bolt spacing on the frame so you will need that frame adaptor one way or another.

 

or take a Dremel to the caliper you have to make the space and grind it down to fit if you only need a few more mm.

this will work just not with the caliper you have becose of the bolt spacing.

 

https://www.ebay.co.uk/itm/163298936563?epid=18022944780&hash=item26056006f3:g:G5QAAOSwftZbfW1x

 

problem is i can not find it for sale cheap in any bike shop in stock and only on ebay at near £30 and is the only way to fix this problem.

 

cable caliper also seem to be a lot wider than hydraulic ones but again modern ones wont match the bolt spacing on the frame so you will need that frame adaptor one way or another.

 

or take a Dremel to the caliper you have to make the space and grind it down to fit if you only need a few more mm.

 

https://www.merlincycles.com/trp-flat-mount-to-post-disc-brake-adaptor-89957/

This looks the same one here ?(soundwave?) for £8.99 and only £3 shipping

the bolt spacing is not the same as it wont fit to the frame he has only the tektro one will work as 40mm vs normal 74mm spacing to fixit to the frame.

this will work just not with the caliper you have becose of the bolt spacing.

 

https://www.ebay.co.uk/itm/163298936563?epid=18022944780&hash=item26056006f3:g:G5QAAOSwftZbfW1x

 

problem is i can not find it for sale cheap in any bike shop in stock and only on ebay at near £30 and is the only way to fix this problem.

 

cable caliper also seem to be a lot wider than hydraulic ones but again modern ones wont match the bolt spacing on the frame so you will need that frame adaptor one way or another.

 

or take a Dremel to the caliper you have to make the space and grind it down to fit if you only need a few more mm.

As you said, we solved the problem with dremel, but I still think it makes sense to buy this adapter. And I'll have to buy an adapter that fits that width, right?

yes the adaptor must match the spacing on the frame problem is as that is a very old standard most modern calipers have a bolt spacing of 74mm. so the one you have wont fit on top of it.

 

a lbs might be able to order it in cheaper direct from tektro if your not in any rush.

yes the adaptor must match the spacing on the frame problem is as that is a very old standard most modern calipers have a bolt spacing of 74mm. so the one you have wont fit on top of it.

 

a lbs might be able to order it in cheaper direct from tektro if your not in any rush.

understood. thank you again. Yes, I'm in no hurry. I will check tektro's website from time to time to see if it's in stock. so how do you know this adapter is compatible with 40mm gap? How can I know this? Where can I find these codes if they have any meaning?

well if that does not fit then i do not know what does as i can nothing else with bolt spacing smaller than 74mm.

 

the codes dont mean anything bar a product number that a shop can order as most bike part manufactures wont sell to the public so need a lbs to order them in for you but postage is a rip off atm if it has to come from Europe.

well if that does not fit then i do not know what does as i can nothing else with bolt spacing smaller than 74mm.

 

the codes dont mean anything bar a product number that a shop can order as most bike part manufactures wont sell to the public so need a lbs to order them in for you but postage is a rip off atm if it has to come from Europe.

so this is not the same as what you suggested on ebay, is it?

so this is not the same as what you suggested on ebay, is it?

yes that is the one if it is in stock and as you can see the bolt spacing for it to attach to the frame is much closer to what you have.

yes that is the one if it is in stock and as you can see the bolt spacing for it to attach to the frame is much closer to what you have.

yes it is in stock now. I live in Dublin. I hope they send it to me. Thanks a lot for your help. The first bike mechanic I went to broke one of the caliper screws while trying to fix it. the other bike mechanic somehow fixed it and created a gap with the dremel but I don't think it's very sturdy so it would make sense for me to buy this adapter and a new caliper-rotor.

 

when i broke that i rang every bike shop and no one would touch it as at the time that wheel cost 500 quid but did not have the tools to remove it but found one that would take a look at it.

 

hammer comes straight out and started to try smash the axle out the wrong way and had to step in and basically use there tools and help to lever the fkn thing off the axle as the bearings was a gray mush and took a fkn hour.

 

i had a new one and was on in 5 mins never been to a lbs since pay peanuts get monkeys

 

when i broke that i rang every bike shop and no one would touch it as at the time that wheel cost 500 quid but did not have the tools to remove it but found one that would take a look at it.

 

hammer comes straight out and started to try smash the axle out the wrong way and had to step in and basically use there tools and help to lever the fkn thing off the axle as the bearings was a gray mush and took a fkn hour.

 

i had a new one and was on in 5 mins never been to a lbs since pay peanuts get monkeys

Although I can't fully understand you because my English is bad, it's true that these things are a bottomless pit. We don't know who we can trust and who we can't. I am an immigrant living in Ireland. maybe that's why it's hard to find something by trial and error and constantly spend money like you. But if I want it, I have to. It is really enjoyable to benefit from your experience and learn something. I hope I don't experience the treatment that the first bike mechanic I went to treated me and another fraud story that I can't tell here.

 

In the meantime, was it a mistake to think that buying a giant brand bike would help me a bit, be of better quality and meet the standards? I can't understand why I'm having trouble. I just wanted to have a good electric bike.

Although I can't fully understand you because my English is bad, it's true that these things are a bottomless pit. We don't know who we can trust and who we can't. I am an immigrant living in Ireland. maybe that's why it's hard to find something by trial and error and constantly spend money like you. But if I want it, I have to. It is really enjoyable to benefit from your experience and learn something. I hope I don't experience the treatment that the first bike mechanic I went to treated me and another fraud story that I can't tell here.

 

In the meantime, was it a mistake to think that buying a giant brand bike would help me a bit, be of better quality and meet the standards? I can't understand why I'm having trouble. I just wanted to have a good electric bike.

You're making the problem much bigger than it is. A 160mm disc will have it's outer edge 10mm further out, so you need to lift the caliper about 12mm from it's present position. The simplest and cheapest solution is to buy a packed of M6 washers and put a load of them between the caliper and the frame until the caliper is in the right position. M6 washers are normally 1.6mm thick, so you'll need 7 or 8 on each bolt. A packet of 20 should sort it.

 

https://www.ebay.co.uk/itm/233665650875?hash=item36678ee0bb:g:VtcAAOSwBNpfIv2g

 

Obviously, you'll need longer bolts to suit. If you want them quick, you can get the washers and bolts from your local Screwfix or whatever equivalent you have where you live.

Edited June 10, 20214 yr by vfr400

You're making the problem much bigger than it is. A 160mm disc will have it's outer edge 10mm further out, so you need to lift the caliper about 12mm from it's present position. The simplest and cheapest solution is to buy a packed of M6 washers and put a load of them between the caliper and the frame until the caliper is in the right position. M6 washers are normally 1.6mm thick, so you'll need 7 or 8 on each bolt. A packet of 20 should sort it.

 

https://www.ebay.co.uk/itm/233665650875?hash=item36678ee0bb:g:VtcAAOSwBNpfIv2g

 

Obviously, you'll need longer bolts to suit. If you want them quick, you can get the washers and bolts from your local Screwfix or whatever equivalent you have where you live.

Thank you for your recommendation. Although it is a method that does not appeal to me, the problem is solved for now. so i don't want to touch it until i have problems but i will try these suggestions in next step.

 

(When I saw how different standards there were, I got a little cold from this job. I can't even ride my bike as long as I want because I am constantly afraid of trouble.)

This thread is a few months old but I seem to have the same issue.

I have just converted my 2020 Specialized Crosstrail and my last issue is the rear brake disc. As the calliper was rubbing on the rear hub motor, I have fitted a 180mm disc. The problem is I cannot find an adapter plate to fit my mounting bolts which are just under 40mm apart and not the standard 68mm. Is it a load of washers or file down the calliper to avoid the disc. Neither option I like the sound of?

I know my wheel need turning around for the cable exit to point downwards. Not a finished job yet!

I would re-install the 160mm rotor and use a few washers on the M5 caliper bolts to clear the motor casing.