====== -- General -- ======
  * https://www.mtbdirect.com.au/clipless-vs-flat-pedals
  * https://www.youtube.com/watch?v=Iu4plluUVtA&t=614s

===== Bunny hops =====
  * https://www.youtube.com/watch?v=tMPPGQCT8mE
  * https://www.reddit.com/r/MTB/comments/1otjvr/cant_lift_rear_in_a_bunny_hop_for_the_life_of_me/
  * https://www.reddit.com/r/MTB/comments/isxgz8/how_long_did_it_take_you_to_learn_the_bunnyhop/
  * https://www.reddit.com/r/MTB/comments/7abr2v/bunny_hops_what_worked_for_you/
  * https://www.youtube.com/watch?v=bhUlaIWKURk&list=PLWtLWtrlqNwGUb1ly1coaSOUQO1eAd5Ha

===== Raven Focus 650b 1.0 (2013?, Agustí) =====
  * https://www.bikeradar.com/news/focus-650b-carbon-hardtail-ag2r-team-replica-sea-otter-2013/
  * https://www.ultimatebikesmagazine.com/2012/10/nueva-focus-raven-650b.html

==== Spare parts ====
  * https://www.flowbikestore.com/index.php?route=product/search&search=shimano%20roldana
  * https://www.bike24.com/p225505.html (Shimano Ultegra / XT / Saint Jockey Wheels 9/10-speed)
  * https://www.bike24.es/productos/249039 (Shimano Deore Set roldanas para RD-M6000 - 10 velocidades)
  * https://endubikes.com/tienda/componentes/pedales/piezas-y-repuestos/kit-pines-repuesto-pedal-oneup-composite/

===== Maintenance =====
==== Shifting ====
  * [[https://www.youtube.com/watch?v=L1X49BsDN8Q | Accurate shifting]]
==== Tyres ====
  * https://www.reddit.com/r/MTB/comments/lcmzni/need_help_deciding_the_new_tires_for_some_cross/
  * https://singletrackworld.com/forum/topic/spesh-butcher-v-minion-dhf/
  * https://www.reddit.com/r/MTB/comments/8zqe76/best_tire_for_trail_riding/
  * https://www.mbr.co.uk/buyers_guide/best-mountain-bike-tyres-323130

==== Brake pads ====
  * https://www.bikeshop.es/pastillas-de-freno-alligator-magura-mt2-mt4-mt6-mt8-organicas/93021.html

==== Suspension fork ====
  * https://www.mtbr.com/threads/how-often-do-you-service-your-forks.923760/
  * https://www.youtube.com/watch?v=i9ttFHfkSw4
  * https://guides.wiggle.co.uk/how-maintain-your-suspension-fork

==== Bottom bracket - Pedalier ====
  * https://www.youtube.com/watch?v=pPIfUnn616g