Sunday, March 16, 2008

Motobecane Fantom 29 vs Specialized Rockhopper Disc 29er of Chicago has a Specialized Rockhopper Disc 29er on sale for $759.99. The shipping is free. So right off the bat it is $164.04 more expensive than the Fantom 29.

The detailed specs can be found on the Specialized website at

Both have Avid BB5 Brakes but the Fantom 29 has larger 185 mm rotors while the Rockhopper has 6" rotors.

Both have similar 29 x 2.1 tires. I will assume the difference is small.

Both have the RockShox Dart 3 Fork but the Rockhopper only has 80mm travel vs 100mm on the Fantom.

The Motobecane and Specialized frames are aluminum. I like the Fantom 29 black color over the Gloss Orange of the Rockhopper.

The Fantom 29 has Shimano Deore Mega-9 Rapid Fire 27 speed trigger shift at $90 for pair vs Shimano Acera SL-MC40 at $18 for the Rockhopper.

The Fantom 29 has Shimano Deore XT long cage rear derailleur RD-M761 at $85 vs Shimano Alivio RD-M410 at $29 for the Rockhopper.

The Fantom 29 has TruVativ 5D 22/32/44T Crankset vs Shimano FC-M341-8 for the Rockhopper. I will assume they are similar price and quality.

The Fantom 29 has Shimano Deore FD-M510 front derailleur $26 vs Shimano Altus FD-M310-6 at $10 for the Rockhopper.


The Fantom 29 has $144 more in parts and costs $164 less. Therefore the Fantom 29 is a better value. The Fork is basically the same on the two bikes. The Fantom 29 has a better drive train, and brakes (larger rotor).

I like the Fantom 29!

As an on going recap here is a list of the bikes I reviewed. They are ranked by a Relative Value Factor (RVF) . The RVF is the price of the Fantom 29 + or - the value of the major parts difference (Delta) divided by the price of the bike. So far the Fantom 29 is the best value of the bikes I reviewed.

Bike Price Delta RVF

Motobecane Fantom 29 596 0 1.0

Raleigh XXIX+G 1100 368 0.876

Diamondback Overdrive 600 -122 0.790

Marin Alpine Trail 29er 667 -122 0.711

Specialized Rockhopper Disc 29er 760 -144 0.595

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