There is no real practical reason behind this tuning option. It’s the look of the suspension block from BikeFun I wanted. The rear suspension of a Brompton is important. The little wheels give you a much harder ride then 28” wheels do and the suspension compensates this disadvantage.
Here you see my new “British retro version – Copper” of a suspension block made in Taiwan by BIKEfun. It comes with a weight of 180g packed in a wooden box. Nice – isn’t it?
The original suspension on a Brompton is provided by a polyurethane block mounted between the main and rear frames.
The suspension block from BikeFun is a more complex piece. It consists of a metal housing, two hard-plastic end caps and a polyurethane block in between. There is a version with a metal spring made in Japan. Mine came with the polyurethane block.
The Brompton suspension assembly consists of the suspension block itself and a bolt and disc. The disc connects the rear to the quick release clamp on the seat post. You will reuse the disc and bolt with the BikeFun suspension block.
The bolt and disc fit perfectly. You still could set the rear frame clip assembly in latch mode or non-latch mode.
Simply rotate the suspension block so that the clip automatically engages with the rear frame. If the clip can’t engage it leaves the rear frame free to fold.
There is a plastic sheet between the suspension block and the frame. It prevents abrasion of the paint and I reused it as I did with the white spacer.
That’s the final look on my orange Brompton. I’m not sure if the silver wheels from Brompfication match pretty perfect…
The performance – it is a firm suspension now. I ordered a firm spring and now the new suspension is really stiff – a little bit too stiff. But it adds a fast touch to my Brompton – no power will be burned by the suspension.
Still the suspension of my Moulton AM is unbeaten – here the optics come to the fore. I like it.