What gear range are you going for ??
A 48-36-22 triple on the front and a standard 16 tooth sprocket would give you the ideal range of around 10"-114".
A Sora rear mech works fine for a chain tensioner, you just need to fit one longer limit screw to lock it at the correct line.
It's a lot cheaper and has more range than the one from Rohloff.
@Tigerbiten I am having a problem with the rear sora mech acting as a chain tensioner. I will contact kevin as well but I thought you seem to know a reasonable amount about it...Your max power output on a recumbent is lower than on an upwrong because you use less muscle groups.
Your Gluts are less stretched and don't work as well so you rely more on your Quads
Plus because you use less muscles groups and you cannot get out of the saddle to alter how they work, they fatigue quicker.
This is why you hear that recumbents don't climb well and also the reason you need to build bent legs.
My basic rule of thumb for fast/fun downhill runs on a good road is ......
2% down = 20 mph. 4% down = 30 mph. 8% down = 40 mph, 16% down = 50 mph.
The only hard one I find hard to hit is the 30 mph one, all the others are easy ......
With these two points in mind and if you can afford the mods.
At the start I would go for the lowest gearing possible.
I geared my first trike down from the 15" standard first gear to a 12.5" first gear by dropping the inner chainring from 26 to 22.
The trike I have now has a first of only 9.5", 38/21 on a 20" Rohloff Wheel.
I know it's below what Rohloff recommend, but I haven't broken anything in 3 years and ~21k miles.
I found that each drop in first gear helps a lot when hill climbing, especially when unfit.
You may not use them, but they are there.
I'd also at least run a double up front to give you more range.
A 53/38 double will almost give you another 3 full gears up.
That what I run, my front shifter fits perfectly in the bottom hole of the handlebars below the rohloff shifter.
Plus I use a Schlumpf High Speed Drive, which works as a 2.5x overdrive gear just for downhill runs ................
Thanks. Kevin at D Tek fitted this one sadly. Funds are very tight at the moment, so I'll see if I can manage with the middle chainring for a while. About to go out and find out if legs are strong enough for the very short incline onto the whitegate way... Somehow I doubt it but... Thanks again. SNSSODefinitely long reach and I'd go for a top quality one so the spring is likely not to lose it's tension quickly. There is another option that quite a few recumbent riders go for.....the Schlumpf Mountain Drive. Excellent piece of kit, but quite expensive - I've had three overs the years on different Bromptons and they are simplistic and work faultlessly.
Good luck lass.Thanks. Kevin at D Tek fitted this one sadly. Funds are very tight at the moment, so I'll see if I can manage with the middle chainring for a while. About to go out and find out if legs are strong enough for the very short incline onto the whitegate way... Somehow I doubt it but... Thanks again. SNSSO
Tbf, quite apt in the situation of any new 'bent rider encountering hills for the first time, if that helps! I hope your glitches get ironed out, SNSSO - hang in there!Confucius said "it doesn't matter how slow you go, as long as you don't stop, you will get there" quite apt in your situation I think.
I will - the freedom it has given me already is wonderful. The last time I actually got further away from home than 400m without being on a stretcher was back at the beginning of November... over 4 months ago now. Just to have made it 2 miles away from home is wonderful! I don't care how many mountain bikers over took me, its not important. But I must get the crutches on the bike... it will reassure me somewhat to say the least. I am just waiting for some parts to arrive in the post which should help to deal with that along with some Velcro which I must locate!hang in there!