Trains from Frankfurt Airport to Karlsruhe can be had for €38 return,
https://fahrkarten.bahn.de/privatkunde/buchen/hafas.post?ld=9698&lang=en&order=yes&ident=jl.0206198.1294174020&seqnr=7&oCID=C1-0&rCID=C3-0&sTID=C1-0:C3-0.1%402660&country=GBR&hafasContinueUrl=https://reiseauskunft.bahn.de/bin/query.exe/en%3Fprotocol%3Dhttps:%26ident%3Djl.0206198.1294174020%26seqnr%3D6%26changeBoth%3Dyes%26ld%3D9698%26country%3DGBR%26&hafasExitUrl=https://reiseauskunft.bahn.de/bin/query.exe/en%3Fprotocol%3Dhttps:%26ident%3Djl.0206198.1294174020%26seqnr%3D6%26ld%3D9698&hdbh=b27a6d9393531632742b68ce032379db&zielorte=Karlsruhe&zielorth=Karlsruhe&zielorta=Karlsruhe&xcoorda=8400374&ycoorda=48993538&distancea=118&services=hea&europcode=FKBL01&europdist=137&sixtcode=2050&sixtdist=134&dbcscode=32987&dbcsdist=140&travelProfile=-1&hafasSessionExpires=0401112204&#focus
@Manc_Ronnie started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Trains from Frankfurt Airport to Karlsruhe can be had for €38 return,
https://fahrkarten.bahn.de/privatkunde/buchen/hafas.post?ld=9698&lang=en&order=yes&ident=jl.0206198.1294174020&seqnr=7&oCID=C1-0&rCID=C3-0&sTID=C1-0:C3-0.1%402660&country=GBR&hafasContinueUrl=https://reiseauskunft.bahn.de/bin/query.exe/en%3Fprotocol%3Dhttps:%26ident%3Djl.0206198.1294174020%26seqnr%3D6%26changeBoth%3Dyes%26ld%3D9698%26country%3DGBR%26&hafasExitUrl=https://reiseauskunft.bahn.de/bin/query.exe/en%3Fprotocol%3Dhttps:%26ident%3Djl.0206198.1294174020%26seqnr%3D6%26ld%3D9698&hdbh=b27a6d9393531632742b68ce032379db&zielorte=Karlsruhe&zielorth=Karlsruhe&zielorta=Karlsruhe&xcoorda=8400374&ycoorda=48993538&distancea=118&services=hea&europcode=FKBL01&europdist=137&sixtcode=2050&sixtdist=134&dbcscode=32987&dbcsdist=140&travelProfile=-1&hafasSessionExpires=0401112204&#focus