Posted October 8, 2011 When in Eindhoven at this years X11 Treffen, I recall one of the European owners had fitted a Blackbird 6 speed gearbox straight into the X11. Am I right in assuming that you'd need the Blackbird gearbox input and output shafts and the gear selector mechanism? I've always felt that the X11 could do with a 6th gear, and having ridden Blackbirds, have noticed that their gearboxes are much smoother from selecting first to flicking through all the other gears! Thinks that this may be a project for next year. 0 Share this post Link to post
Posted October 8, 2011 The ones you want are what (Honda) call the Main and Counter shafts... the gears are split between the two. Big job tho Andy! 0 Share this post Link to post
Posted October 8, 2011 Is everything required in this lot? http://www.ebay.co.uk/itm/370534577304?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 I won't do it, will get the mechanic who did the strip down and rebuild 5 years ago to do it. 0 Share this post Link to post
Posted October 8, 2011 Yep, looks like it! Maybe a good time to inspect and if req. refurb the internals of your motor whilst he's at it. Selector dogs and bushes etc... 0 Share this post Link to post
Posted October 11, 2011 Nah just quite liked the idea of having six gears and hopefully a smoother 1st to 2nd gear change. 0 Share this post Link to post
Posted October 11, 2011 Don't fordet to re-gear it sprockets wise - (More Expense!) 0 Share this post Link to post
Posted October 12, 2011 Ah! I hadn't thought about the sprockets, what would happen if I leave the set up as it is just now? I thought the speedo worked off the final output shaft of the gearbox so the sprockets could remain as std or am I mistaken? 0 Share this post Link to post
Posted October 12, 2011 2006 Honda CBR1100XX Super Blackbird Drivetrain; Clutch - Wet, multiplate with coil springs Clutch Operation - Hydraulic Transmission Type - 6-speed Primary Reduction - 1.571 (88/56) Gear Ratios - 1; 2.769 (36/13), 2; 2.000 (32/16), 3; 1.579 (30/19), 4; 1.333 (28/21), 5; 1.167 (28/24), 6; 1.042 (25/24) Final Reduction - 2.588 (44/17) Final Drive - O-ring sealed chain X11 Transmission Type - 5-speed Primary Reduction - 1.571 (88/56) Gear Ratios - 1; 2.529 (43/17), 2; 2.769 (36/13), 3; 1.938 (31/16), 4; 1.316 (25/19), 5; 1.167 (28/24) Final Reduction - 2.588 (44/17) Andy Based on 2006 BB gearing I wouldnt worry about sprocket changes as your speedo runs of the output shaft , the only diferences will be the engine rpm , the blackbird 1st gear is the same as x11 2nd gear , then will be closer ratios up to 5th wich is exactly the same as X 5th , so 6th would be basicaly an Overdrive. 1 Share this post Link to post
Posted October 13, 2011 Cool that's exactly what I was hoping to achieve, now I've just got to get a BB gearbox at the right price! Greedy uk parts place is asking £240 plus £10 p&P wheras in US I could buy one for £102 plus £50 P&P. 0 Share this post Link to post
Posted July 8, 2014 2006 Honda CBR1100XX Super Blackbird Drivetrain; Clutch - Wet, multiplate with coil springs Clutch Operation - Hydraulic Transmission Type - 6-speed Primary Reduction - 1.571 (88/56) Gear Ratios - 1; 2.769 (36/13), 2; 2.000 (32/16), 3; 1.579 (30/19), 4; 1.333 (28/21), 5; 1.167 (28/24), 6; 1.042 (25/24) Final Reduction - 2.588 (44/17) Final Drive - O-ring sealed chain X11 Transmission Type - 5-speed Primary Reduction - 1.571 (88/56) Gear Ratios - 1; 2.529 (43/17), 2; 2.769 (36/13), 3; 1.938 (31/16), 4; 1.316 (25/19), 5; 1.167 (28/24) Final Reduction - 2.588 (44/17) Andy Based on 2006 BB gearing I wouldnt worry about sprocket changes as your speedo runs of the output shaft , the only diferences will be the engine rpm , the blackbird 1st gear is the same as x11 2nd gear , then will be closer ratios up to 5th wich is exactly the same as X 5th , so 6th would be basicaly an Overdrive. big mistake man! how the first ratio can be longer than second? correct gear for the X11:1st 2.769, 2nd 1.938 , 3rd 1.556, 4th 1.316, 5th 1.167, final 17/43 0 Share this post Link to post
Posted July 8, 2014 Big Mistake , copied from data found on line , And your point IS ? 0 Share this post Link to post
Posted September 21, 2014 (edited) i don't remember where i found it. Edited September 21, 2014 by Roadmaster 0 Share this post Link to post
Posted September 21, 2014 i've made a research and i found it on japan prospect documents (that i own) to be right: 1 - 2.769 2 - 1.937 3 - 1.555 4 - 1.315 5 - 1.166 0 Share this post Link to post
Posted September 26, 2014 (edited) Well, I can tell you what will happen, since my X has a BB engine in it. The standard gear ratios are fairly unusable, unless you are trying for the mobil economy run in top.... You would have to goto 17/46 or similar, certainly 17, the other sprocket depends what you do with your bike (cruise around, etc, or what...). And yes, you will need every piece of the BB gearbox including the shafts, etc. You'll need a speedohealer because the sensor (which is the same) is driven off a different gear in a BB, (and in neither case is it direct from the output shaft...) so it'll be miles out (17% from memory..). kr D. Oops, I should have added, if a gearbox cost 250 quid, hmmm well I bought a whole BB engine for (from my flaky memory) 380. It wasn't exactly hard to bolt in... Edited September 26, 2014 by dwr 0 Share this post Link to post