....and as an example of the abuse they can take I run one about 20% overvoltage for just over 1KW peak power. I wouldn't bet any money on it being able to run this for very long periods of time but it works well on a number of steep climbs locally...
Wisper 906 Alpino first impressions
- Thread starter Mussels
- Start date
yes, it is all a bit vague... i've tested our alpino motors at 700w for about 3 minutes, then a rest of 30 sec (back down the hill!) then another 3 minutes... did this 7 times... motor was hot, but well within its operating temp... I'm very impressed by these alpino motors... being a japanese company, they seem very conservative in their power rating... but, like any machine... the harder you run it, the shorter it's lifespan... so, our alpino motors are very comfortable with 15 amps continous... hence the 2 year warranty.
Photos of the size difference:
One with the seat posts lined up and another lined up as if they were against a wall.
One with the seat posts lined up and another lined up as if they were against a wall.
Attachments
Photos of the stand showing how close it is to the brake disk.
Fortunately it hasn't rubbed but I've fitted it as far out from the rotor as I could.
Fortunately it hasn't rubbed but I've fitted it as far out from the rotor as I could.
Attachments
If anyone knows where I can buy inner tubes in SE3 I'd be grateful. I've just found the inners have a blue liquid in them that prevents my patches from sticking so I can't fix the puncture. Time for a coffee and wait until I can take it on the train after 7pm.
OMG! A stranded 906 Alpino? Find your nearest Halfords Store Nearest Halfords? Bit of a trek, I'm afraid.
What's with the 'blue liquid'? Were you asked if you wanted slime by the dealer, when you specified the bike details?
Ah, just looked at the time, your on the train now?
What's with the 'blue liquid'? Were you asked if you wanted slime by the dealer, when you specified the bike details?
Ah, just looked at the time, your on the train now?
Yes, I think they could well a contender at the first puncture. These look interesting as well: Schwalbe Marathon Supreme Tyre | Buy Online | ChainReactionCycles.com assuming the 700's will fit?
Cheers,
Mike
Halfords was also just past the closest train station, when you posted I was wandering through Charlton village. I got to the station about 45 minutes before I would be allowed to use it so I carried on to Halfords to buy spares and fix it there.OMG! A stranded 906 Alpino? Find your nearest Halfords Store Nearest Halfords? Bit of a trek, I'm afraid.
What's with the 'blue liquid'? Were you asked if you wanted slime by the dealer, when you specified the bike details?
Ah, just looked at the time, your on the train now?
1st problem: Halfords don't sell inner tubes thick enough for a 45c tyre so I need a new tyre as well.
1st good thing: they have 1 Marathon Plus left and it's the right size.
2nd problem: they don't sell 700 inner tubes with schraeder valves.
3rd problem: I don't have a presta pump.
4th problem: The rim tape is a poor fit and has exposed the spoke holes, this is a puncture waiting to happen.
5th problem: Halfords are out of stock.
So I now have a presta valve fitted in a schraeder hole, I don't know how long it will be before that goes pop. I have a front tyre thicker than the rear, a little odd but it rides fine. I have a terrible bike pump that can't manage a decent pressure. I have a pretty blue colour inside the mudguard where the slime sprayed out and covered all in it's path and I have a legendary tyre which I'm confident I'll puncture soon.
Now to order new inner tubes and rim tape before it happens again.
Morning Mussels, sorry I didn't get back to reply last night, had stick of ram die on me! (I hate faffing around with computers in the evening when I should be using them!) Anyway, glad you had a sort of result in resolving the puncture. Sounds like Halfords need to look at their stock levels!Halfords was also just past the closest train station, when you posted I was wandering through Charlton village. I got to the station about 45 minutes before I would be allowed to use it so I carried on to Halfords to buy spares and fix it there.
1st problem: Halfords don't sell inner tubes thick enough for a 45c tyre so I need a new tyre as well.
1st good thing: they have 1 Marathon Plus left and it's the right size.
2nd problem: they don't sell 700 inner tubes with schraeder valves.
3rd problem: I don't have a presta pump.
4th problem: The rim tape is a poor fit and has exposed the spoke holes, this is a puncture waiting to happen.
5th problem: Halfords are out of stock.
So I now have a presta valve fitted in a schraeder hole, I don't know how long it will be before that goes pop. I have a front tyre thicker than the rear, a little odd but it rides fine. I have a terrible bike pump that can't manage a decent pressure. I have a pretty blue colour inside the mudguard where the slime sprayed out and covered all in it's path and I have a legendary tyre which I'm confident I'll puncture soon.
Now to order new inner tubes and rim tape before it happens again.
Ok then, a few questions if you don't mind?
1. What are the actual size of the tyres and tubes fitted as standard? On the Wisper website the specs for the Alpino state: Kenda K935 26" or C700 x 1.75 puncture resistant. I was under the impression that the larger wheels were the norm?
2.When you said the rim tape is a poor fit, was that the cause of the puncture?
As to the blue slime, well would it not be better for Wisper to supply the bikes without installing the slime and provide a can for the rider to use in the event of a puncture? At least that way you have both options of repair and patches would stick to a non-slimed inner tube.
Regards,
Mike.
You mention the hydraulic brakes - I have them on my Tasman and very good they are too. They do point up the limitations of bike tyres, though, in that they are quite capable of locking up the wheels at any speed. Stoppies might be difficult, therefore, since you need tyre grip for for that. Maybe skiddies are easier
On the 8 speed Alfine, I start in 3rd gear, change to 5th, then 7th and then to 8th. That seems to give good gaps between the gears for accelerating from lights in town.
On the 8 speed Alfine, I start in 3rd gear, change to 5th, then 7th and then to 8th. That seems to give good gaps between the gears for accelerating from lights in town.
That's exactly what I fitted, 700x38c Marathon Plus.
1. The tyres are 47-622 or 700x45C or 28x1 and 5/8, depending on what system you prefer. The Rim is 622x17.
2. The puncture was caused by something in the road, the rim tape exposing the spoke holes is a potential puncture.
Slime seems to be a marmite thing, it works well in tubeless tyres but I've not seen any evidence that it works with tubes and last night it certainly didn't.
I think your gearing is lower than mine, I find 1st gear is a little high and the gap between gears is a bit big so I certainly wouldn't skip them on the way up. I can pedal up to 45mph in 8th, if yours is lower then it would explain the difference in opinion.You mention the hydraulic brakes - I have them on my Tasman and very good they are too. They do point up the limitations of bike tyres, though, in that they are quite capable of locking up the wheels at any speed. Stoppies might be difficult, therefore, since you need tyre grip for for that. Maybe skiddies are easier
On the 8 speed Alfine, I start in 3rd gear, change to 5th, then 7th and then to 8th. That seems to give good gaps between the gears for accelerating from lights in town.
If the tyres can't cope with the brakes then I'll be back on the balloon tyres soon.
I'm happy as the Presta valve in the Schraeder hole hasn't gone pop yet.
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slightly disappointing as from memory the 26" rims on the 2009 Wisper 905SE have a very good piece of "proper" rim tape... this I was impressed by as things like this are often overlooked.. I had this problem on my hybrid (indeed causing some punctures from the spoke holes) and got some French cloth based stuff from Edinburgh bicycle Co-op...
Yep all slimed up and with the Dodgy Kenda tyres!
I still think they are brilliant! I will certainly look into the rim tape issue.All the best
David
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The rim tape looks quite substantial but it just the wrong width and creeps away from the holes, from that I have read finding the right width tape is as much an art as a science.
The Kenda tyres seemed fine and there is no sign of the trouble I've had with them before, I would have carried on with them had Halfords sold wide enough inner tubes. I guess now I'll find out if Marathon plus is much better, the blue barrier isn't very thick so it looks like it will only stop very small objects.Yep all slimed up and with the Dodgy Kenda tyres!
All the best
David
The kenda tyre does not however make a good shoulder strap, 10 miles with that wrapped round me was fun.
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