Front Brake Master Cylinder

[Trikerbri]

The front brake master cylinder on my GL1500 has a piston bore of 12mm designed to operate a single disc, does anyone in the USA produce a custom replacement looking like the original but with a 14mm piston bore which is for twin discs. I have looked at other Honda models with twin discs but the 'masters' do not match the original and I don't want odd looking kit on the trike.
I did research having mine bored out to 14mm but was advised against this by engineers as the thinning of the moulding where the piston fits would be very much weakened. I did buy a 'master' off ebay exactly like the original advised as 14mm piston but when it arrived it was actually 12 so sent straight back, found out later it was made in China. Anyone know a solution to this?

 

[Marc H]

7/8'' Brake Master Cylinder Honda Shadow VT 700 750 1100 VTX 1300 1800 Valkyrie | eBay First gen shadows had a 7/8 handler bar and dual front calipers. I used one these on my 1500. Once you get the original bled it works well and actually gives a stronger brake due to increased multiplication. Had a sticking piston drive me nuts trying to bleed mine.

 

[Trikerbri]

7/8'' Brake Master Cylinder Honda Shadow VT 700 750 1100 VTX 1300 1800 Valkyrie | eBay First gen shadows had a 7/8 handler bar and dual front calipers. I used one these on my 1500. Once you get the original bled it works well and actually gives a stronger brake due to increased multiplication. Had a sticking piston drive me nuts trying to bleed mine.

That's a great help thanks, will try and find one on our ebay today

 

[Trikerbri]

That's a great help thanks, will try and find one on our ebay today

Got it sorted, GL1800 2005 on its way. Ordered a Master Cylinder repair kit to refurb it ready.
Cheers Marc.

 

[Panel Man]

Left front is usually coupled with rear calipers on the trike, gives a far better brake and front brake is hardly ever needed