I own 6 speed (-12%) Brompton with 29.1”/2.32m to 88.0”/7.03m range. My understanding is that Riese & Müller Birdy Touring has 2.7m to 7.8m range. Lowest gear seems to be on higher rate compared to Brompton and since in Istanbul we have lot’s of hills I wander if this difference will be seriously noticeable.

Also here are the specs of Riese & Müller Birdy Touring. Being a Brompton owner I don’t understand much in this. How are the specs, anything I need to consider upgrading? When bike is on highest gear derailleur seems to be too close to the floor. Any suggestions here, maybe to change it with shorter one?

Tech data:

Frame colour Grey/Graphite Matt

Headset TH No. 10, semi-integrated

Seatpost JD/Riese & Müller, Alu, 34,9 x 565mm

Seatclamp TranzX, 40,0 mm, QR

Tires Schwalbe Marathon Racer 40-355 Reflex

Tubes Schwalbe SV5

Rims Alex Crostini 1.1, 18"

Front hub Chosen Mount, 32 Loch; Hub dynamo Shutter Precision*

Rear hub Sunrace, 32 Loch

Crankset Driveline, 52T, incl. Hollow Tech bottom bracket

Chain KMC X10 ( 111x )

Cassette Sunrace 10-speed, 9-32

Saddle Selle Royal Shadow

Pedals VP-183

Shifting system Shimano Deore Trekking, 10-speed

Shifter Shimano SLX, 10-speed

Handlebar Satori Horizon, 31,8 mm, 10°, B=540 mm

Stem Comfort 10°*; Sport 21°*

Grips Ergon ergonomic

Brakes Shimano Deore, disc brake

Front light Supernova E3 Pure 3S*

Tail light Supernova E3 E-Bike Tail Light 2*

Mudguards SKS Birdy

Luggage rack Riese & Müller*

Rubber Bibia*

Bell Billy

Kickstand Minoura for Birdy