Eerder metaal Quick release Rohloff gear kit Extended works with Schwalbe Smart Sam 2.35" tires and other tires with the same or smaller actual width and height. For all non Electric G line Bromptons
Only 7 kits have been produced. No plans for new production yet. The Standard Rohloff kit though will be produced in or around October 2025
The Rohloff Extended kit consists of:
- Left and right side stainless steel dropouts with integrated derailleur/tensioner hanger, including steel dropout bolts. Fits the Rohloff OEM2 torque arm. Laser cut, stone tumbled and machined 304 stainless steel. With steel chain ring / dropout bolts and nuts included to replace the original alumnium ones.
- Eerder X Rohloff chain tensioner bolted to the derailleur dropout for easy wheel removal, it swivels back just like a rear derailleur for easy wheel removal and installation, great for maintanance and trail side repairs
- Rear rack offsetters to move the rear mudguard (and the rack) up to clear the fatter Smart Sam tyre
- Eerder long and low profile Front light mount for Son, stainless steel. This light mount is designed to clear the Son light on the original Brompton luggage frame and the Eerder Full metal Frame on both the plastic Brompton luggage block and the Full metal Bracket for G line. It can also be used for Cateye Ampp lights with the Eerder Ampp light adapter (coming soon). It makes a split mudguard blade possible to clear the fatter Smart Sam tyre. For that you also need the front mudguard offsetters.
- Front mudguard offsetters making a split mudguard blade possible to clear the fatter Smart Sam tyre
- No 140 to 160 mm Flatmount adapter needed to make the 160mm 4 bolt disc brake rotor fit.
- Sapim Laser Black spoke set (32 + 2 spare 2.0-1.5-2.0 mm butted) for the original G-line rim and nipples using a single / 1 cross lacing (don't use a 2 cross with this small rim and big hub) . Aks your local wheel builder to build a reliable wheel for you. This way we save on material (no new rim needed) and shipping cost and you will have two matching rims in your G line.
- 160mm XLC disc rotor set, Centerlock front and 4 bolt Rohloff fit rear. These Extended dropouts only work with a 160mm disc rotor, not the standard 140mm rotor size. As a result no FM adapter is needed. The front Flatmount adapter can be put upside down to fit the 160mm Centerlock rotor. Upgrading to 160mm rotors means more stopping power and cooler running rotors. Both rotors have the same design of the braking surface and spokes.
- Longer Sunrace BB cartridge axle with aluminium housing and cups plus a 1,65mm thick spacer for a 54mm Rohloff chainline. Note: only threaded Rohloff sprockets of 15 t and bigger give a 54 mm chainline and the narrow splined carrier creates a 55mm chainline. The standard chainline of the G line is around 48.5mm (and the Alfine hub +/- 47.25)
- Optional Rohloff Speedhub Disc CC OEM2 hub including Rohloff twist shifter, cables and shift box and a splined reversible 16t sprocket. Can best be combined with a 50t chain ring or 44t if steep climbs with camp gear is what you're up to. You need 108 links on a 50t and you can reuse the original chain if there's not a lot of miles on it. A few hundred is no problem. If in doubt, just try. If it doesn't skip it's fine.
This kit is designed for the 14 speed Rohloff internal gear hub. You can check the difference with the Alfine 8 hub with the link below:
ritzelrechner.de Rohloff 14 vs Alfine 8
You can see that both gear hubs have three gears above the 1:1 gear (5th for Alfine and 11th for Rohloff) and the Alfine has some more spacing between the gears. The Rohloff has three more gears at the bottom and a smaller spacing between the gears, resulting in 10 gears lower than 1:1 ratio vs 4 gears lower than 1:1 for the Alfine 8. In order to have the gears better spread for the 20"wheels of the Brompton G line the Rohloff hub needs a smaller sprocket. I consider a 16 teeth sprocket ideal, combined with a 44t chainring for the average rider and a 50t for speed devils.