Let's See Your Folding Bike

[a.twiddler]

That would be a sound idea. I just wanted a little more and have no regrets.




I think I understand but not quite clever enough to follow everything. Remember though the G line has the 8 speed Shimano Alfine hub gears.

I wonder if having the Alfine hub gears means that the hub on the G line is full width or if Brompton's buying power has allowed them to specify a narrower hub? I think Dahon for example have narrower hubs than standard in their folding bikes but don't know if that extends to bikes with hub gears.

 

[Geoff Crowther]

I wonder if having the Alfine hub gears means that the hub on the G line is full width or if Brompton's buying power has allowed them to specify a narrower hub? I think Dahon for example have narrower hubs than standard in their folding bikes but don't know if that extends to bikes with hub gears.

Dunno but I'm guessing full width cos it will also accept Rohloff.

 

[CycleCat]

What is the reason for your P Line preference over the G Line?
Kev

I had read comments about how Bromptons were "for the last mile" and twitchy etc, then I watched video reviews of the G Line and how it felt like a full sized bike to ride, so I walked into the shop with the intention of buying the G Line, but then I saw the P Line in Bolt Blue and just fell in love with it.
I don't find the P Line twitchy at all, it is a real pleasure to ride. My wife drives 20 miles to work and I sometimes pop the bike the back of the car and cycle home on country lanes and through orchards, it's idyllic at 6AM.

The P Line has really surprised me, it's lightweight and folds down to a very compact size and the gear range is excellent.

I initially found the G line harder to push, it was a combination of the weight and the tyres. At the weekend I swapped the tyres for Continental Contact Urban, these will suit me (or the wife) better for the next few months as we are planning more road cycling and a trip to Paris. A 20 mile cycle this morning on these tyres makes me appreciate the G Line even more, it was very comfortable.

I have made a few additions to both bicycles.
Both now have "Mr Ti Parts" stands and mirrors (https://www.amazon.co.uk/dp/B092QKJNPM and https://www.amazon.co.uk/dp/B0CYLV2M7Y)

The P line has Ergon GP3 grips, and I replaced the roller wheels with the 70mm & 80mm wheels from the G Line.

The G Line now has the MiniMods X-Roller Easy Wheels Extender, which makes it much more stable when rolling around:
https://www.fantastic4toys.com/en-g...y-wheels-extender-for-brompton-bicycle-g-line
... and the "EZ4U Folding Compact Kit for Brompton Bicycle G Line", a simple mod which really does improve the G Line folding dimensions.
https://www.fantastic4toys.com/en-gb/products/ez4u-folding-compact-kit-for-brompton-bicycle-g-line

I have also been splashing out on some Vincita bags,
Vincita Nash Pro Rack Bag on the P line,
ROCKBROS Bike Handlebar Bag (also doubles as a backpack) on the P Line.

Vincita Voyage B.D.R. Bag on the rack of the G line, this bag is HUGE and also doubles as a backpack.
Vincita Voyage Frame Bag, perfect for holding a bottle of wine.
Vincita Boomerang Bag for the toolkit & puncture repair.
Vincita Voyage Atlas Bag on the front of the G Line, I am looking forward to using this for shopping.

You might also notice Mrs. Cat checking out the Overade PLIXI folding helmet, I'm really happy with that purchase too.

Next purchase might be a lawnmower.

 

[Kell]

That’s interesting for me as I’m waiting for the G line demo bike to arrive at my local dealer. My eyes are on the G line or alternatively the 12 speed P line. I live in a hilly area so adequate gearing is essential.

In terms of spread of gears, the 8-speed is almost identical to the 6-speed.

I'm torn about what to move to next as my 6-speed covers pretty much everything I need it to but I had to go aftermarket for the chainring. (48T from Spa cycles.)

The std 44T was too low end for me which meant I ran out of gears at the top end.

I ran the 50T from new when I was younger and fitter. But as I've got older and fatter, the one killer hill on my commute became a bit too much. The 48T provides just about the right spread for me, but I'd like less of a gap between them. I had hoped the G-Line with more gears might be the solution. But it's an expensive gamble.

Where the G-Line might work out for you in hillier areas is that it looks like the gaps between gears are shorter at the low end, and then spread out more towards the top end. Meaning you've got more gears for the times you really need them.

I put together a chart to compare the various options available to me. It was put together before anyone knew the final specs for the chainring and the sprocket size. Unfortunately, Flickr has gone down so I can't link to it here. It's in another thread, so I might be able to find it that way.

 

[Kell]

Here it is:

I would say it's not very, very accurate. I made it in PPT to replicate the official Brompton one from a few years back and just dragged and dropped the dots to put them roughly in the right place. I made it for me, just to see how the various gearing systems compare to each other if they all were based on a 50T chainring.

Just googled for my own info. The G-Line as standard comes with the 54T chainring and 20T sprocket. So it's the second of the Orange lines.

 

[Kevberlin]

Thanks Cyclecat and Kell…………two very interesting posts

 

[Fastpedaller]

I've not seen an answer to the following question, although I think I know the answer.......
Is the seat tube diameter on a G-line the same as the regular, 16 inch-wheel Brompton?
If it is, then a double chainring and front derailleur could be fitted!