Shimano SM-MA-F180PP2 Adapter for Post Type Caliper - 180mm Post Type Fork Mount

I recommend this product

Good product. Does the job perfectly. Agree with other reviews. This is a ' 20mm rotor DIA' adapter. I used this for increasing from 140 to 160 rotors both front and rear on a road bike.

Question the bolt length, it requires you to use the alignment washers to get the correct stack height for the bolts. Aesthetically not the nicest. Though if super bothered by it the bolts could be cut down.

I recommend this product

Good simple product but so confusing to work out which one you need. Earlier review suggests calling it a 20mm spacer, simple !
It also took a while to work out after much searchin and not being able to find an adapter for the rear calliper
that turns out I conclude ( please correct if I'm wrong ) is the same as the one sold for the front and not for front and rear !!??!!
Other manufacturers describe in similar way.
At £2.99 in sale it's a bargain but £9.99 full price bit high so value only 3 stars at this price point.
This is NOT an SJS issue
SJS highly recommended, appear to sell all the little bits n bobs no one else does but that people still actually still need.

I recommend this product

I used these adapters to fit 160mm discs on my wife’s Liv Avail which is normally setup to take 140mm. Not sure why they are not just advertised as 20mm spacers?