Το εξωτερικό κάλυμμα ταιριάζει με τριβή. Τραβήξτε και αφαιρέστε το προσεκτικά από κάτω με ένα μικροσκοπικό κατσαβίδι. Αφαιρέστε τις 3 βίδες. Προσεκτικά, σηκώστε το επάνω μέρος, ΜΗΝ αφαιρέσετε τα εξαρτήματα του κεντρικού εμβόλου. Γεμίστε με γράσο. Επανατοποθετήστε το επάνω μέρος, σφίξτε αργά τις βίδες αριστερά και δεξιά, αφήστε το γράσο να βγει από την κεντρική τρύπα υπερχείλισης. Αντικαταστήστε την κεντρική βίδα. Καλή τύχη! (Google Translate)

www.amazon.com/gp/product/B076GYKJM1/?th=1&psc=1 Small battery packs attach to hub, light wires wrap in and out around spokes.

It is a "Record Doctor - V", very popular vac. Works very well, not cheap but not expensive by any means considering what these things can cost. Available from many retailers, many reviews. www.amazon.com/Record-Doctor-Cleaning-Machine/dp/B00BEIC3DO

@@crispy1138 awesome! never heard of it. tx for the reply! I'll get right to work. gotta read some reviews. have a great week!

You're welcome, glad I could share. :-) Fun little uke, great childhood memories. The dude that owned it back then with all the signatures and drawings on it must have been a "big man on campus" entertaining all the ladies in a raccoon coat.

All the details are there, but they gloss over the rear hub, the gear inch specs are there as well near the bottom, definitely easier to navigate on a PC vs phone screen. Great folks, give them a call. Gears are perfect. 3 speed crank and SRAM 9 speed 11-32 in back so 27 speed derailer. Rear hub is a 3 speed internal Sturmey Archer .75/1/1.33 = 81 speeds. Smooth instant shift. Gear 2 =1/1 so "normal" road gearing. Gear 1 = .75/1 and puts you in basically lower mtb gearing. Gear 3 is serious high speed overdrive IMHO. Excellent flexible system. 18.3 - 163.8 gear inches range. Super machine, totally customizable so choose the options/tires you want. I got Big Ben's and I recommend the auto "easy adjust" chain tensioner. The rear brake is handy as well. These are pics and specs of my actual trike build: www.utahtrikes.com/RECENTTRIKE-5131151_CatrikeAnnihilatorV81byUtahTrike.html

Thanks, I'll see what I can do. :-) I agree, not enough videos of the Sundrum, wonderful instrument. So much more flexible than having to buy several expensive pan or tongue drums to get different tunings.

Yeah, it's a pretty genius instrument. I heard someone say that the condenser mic version isn't really worth it and that they had feedback issues with it. It sounds great to me but it did get me thinking if it'd still sound great with just the piezos as it's a lot cheaper that way.

The omni condenser mic is high quality. Sounds great as a close mic (a further away shotgun would have a different character). Not really designed for live performance, but nice for recording and not having to setup another condenser mic/stand etc. Definitely a woodier/percussive different sound than the thuddy piezos. Not a huge price difference, but to each his own.

It does sound pretty fab, I'd want to use it live and wouldn't mind setting up a condenser mic for recording. Also i'm a poor student, so I feel like it might make more sense for me personally.