Search found 545 matches

by MikeDee
18 Feb 2019, 11:25pm
Forum: Electric bikes
Topic: OBREA GAIN D40 (e-bike)
Replies: 54
Views: 4254

Re: OBREA GAIN D40 (e-bike)

I bought a carbon Gain M30 a few weeks ago. I live in the US so it has the 20 mph cut-off speed, and I've put 275 miles on it thus far. I love it. I haven't used the app except to check the power level at the end of the ride. I just ordered a Topeak bar mount for my iPhone. Does the bike increase t...
by MikeDee
13 Feb 2019, 3:51pm
Forum: Bikes & Bits – Technical section
Topic: brinelling
Replies: 11
Views: 1721

Re: brinelling

actually I think most of what rogerzilla has said is what I've said, not what Brandt has said. Its been a while since I have read what Brandt said in detail but IIRC he maintained that it couldn't possibly be real brinelling because the loads would be too low for that to happen and he couldn't see ...
by MikeDee
11 Feb 2019, 5:46pm
Forum: Electric bikes
Topic: Q: How much resistance when motor is OFF
Replies: 15
Views: 2083

Re: Q: How much resistance when motor is OFF

I imagine it's pretty normal that if you are cycling above the legal limit you will feel an immediate slow down if you stop pedalling since you are no longer receiving power. That is not resistance. If there is no overrunning clutch in the motor, aren't you just "wasting" your human power...
by MikeDee
11 Feb 2019, 12:00am
Forum: Electric bikes
Topic: Q: How much resistance when motor is OFF
Replies: 15
Views: 2083

Re: Q: How much resistance when motor is OFF

As far as I know, only Brose and Fazua mid drive motors have no drag when pedaled with the power off, due to them having a freewheel clutch.
by MikeDee
10 Feb 2019, 11:49pm
Forum: Electric bikes
Topic: OBREA GAIN D40 (e-bike)
Replies: 54
Views: 4254

Re: OBREA GAIN D40 (e-bike)

Can anyone recommend a heart rate monitor chest strap that works with an iPhone and the ebikemotion app?
by MikeDee
8 Feb 2019, 10:57pm
Forum: Electric bikes
Topic: OBREA GAIN D40 (e-bike)
Replies: 54
Views: 4254

Re: OBREA GAIN D40 (e-bike)

I bought a carbon Gain M30 a few weeks ago. I live in the US so it has the 20 mph cut-off speed, and I've put 275 miles on it thus far. I love it. I haven't used the app except to check the power level at the end of the ride. I just ordered a Topeak bar mount for my iPhone. Does the bike increase th...
by MikeDee
8 Feb 2019, 10:33pm
Forum: Bikes & Bits – Technical section
Topic: Wheel lacing
Replies: 4
Views: 852

Re: Wheel lacing

it may not be possible to relace the hub; it is possible that the drillings may only work if the spokes are put in that way round. Even if it were possible I probably wouldn't bother. one reason is that when the wheel falls apart and you start thinking 'warranty?' it will be obvious that the wheel ...
by MikeDee
8 Feb 2019, 9:54pm
Forum: Bikes & Bits – Technical section
Topic: Wheel lacing
Replies: 4
Views: 852

Wheel lacing

I have an Orbea Gain ebike. The rear wheel is laced with all outbound spokes (32, 14 gage spokes). I thought that was a little odd. Is it worth relacing the wheels to the normal inbound-outbound pattern? Maybe spoke washers under the spoke heads? https://uploads.tapatalk-cdn.com/20190208/eb88f2bb39d...
by MikeDee
6 Feb 2019, 3:27pm
Forum: Bikes & Bits – Technical section
Topic: Chain Care
Replies: 60
Views: 5377

Re: Chain Care

Scunnered wrote:Anyone tried a Titanium Nitride coated chain?
https://www.sjscycles.co.uk/chains/kmc-x10el-tin-11128-inch-10-speed-chain-114-links-gold/

Titanium Nitride is hard and also corrosion resistant.


The problem with coatings is that they eventually wear off.
by MikeDee
2 Feb 2019, 11:02pm
Forum: Bikes & Bits – Technical section
Topic: Seat tube front derailleur over tightened
Replies: 17
Views: 1589

Re: Seat tube front derailleur over tightened

I wouldn't worry about it. Keep an eye on it, but even if the tubing crack through the tube, it's not a catastrophic failure. I had a seat tube crack almost all the way around and the bike was still rideable before I noticed it.
by MikeDee
2 Feb 2019, 9:12pm
Forum: Bikes & Bits – Technical section
Topic: Tubeless tire maximum pressure
Replies: 7
Views: 935

Re: Tubeless tire maximum pressure

I've got Mavic Yksilon Pro UST tires on my new bike. They came with tubes in them. I went to run them tubeless without sealant and they leaked. Dunked them in water and bubbles were coming out of the sidewalls so they require sealant. They are not the UST tires of yesteryear with the heavy butyl lin...
by MikeDee
2 Feb 2019, 9:05pm
Forum: Bikes & Bits – Technical section
Topic: A thought about chains
Replies: 4
Views: 829

Re: A thought about chains

Brucey, I completely understand your comments about worn chains and I would like to clarify my original post. I should really had made it clear that I was drawing attention to the fact that the chain elongation tool has its uses but cannot indicate wear in all cases. I am going to quizz the owners ...
by MikeDee
31 Jan 2019, 5:33pm
Forum: Bikes & Bits – Technical section
Topic: Tubeless tire maximum pressure
Replies: 7
Views: 935

Tubeless tire maximum pressure

Many rims have bead retention humps in the rim bed. I think Mavic pioneered them in the original UST. That is what causes the snapping noise as the beads get pushed over the humps and snap into place. My Conti nontubeless tires make the snapping sound on my Shimano tubeless rims. A lot of rims don't...
by MikeDee
31 Jan 2019, 3:39pm
Forum: Bikes & Bits – Technical section
Topic: Tubeless tire maximum pressure
Replies: 7
Views: 935

Tubeless tire maximum pressure

Someone in that article discussion said to pump the tire up to 150% of the pressure you intend to use (no sealant and wear ear and eye protection). If the tire doesn't blow off, you're good to go. Seems that the tire bead could be damaged if it does blow off. What then? I think what's happening is t...
by MikeDee
31 Jan 2019, 2:58am
Forum: Bikes & Bits – Technical section
Topic: Tubeless tire maximum pressure
Replies: 7
Views: 935

Tubeless tire maximum pressure

In this article, Jan Heine says not to exceed 60 psi in a tubeless tire: https://janheine.wordpress.com/2017/05/29/the-trouble-with-road-tubeless/ This is regardless of tire size. Panaracer also says the same thing for their GravelKing tires. (Panaracer makes Compass tires too.) This makes no sense ...